News

What Is Newborn's DuraCore® Technology?
When it comes to professional caulking guns, durability and reliability matter. Whether you’re sealing windows, installing doors, or applying industrial-grade adhesives, the internal components of your tool play a major role in how well it performs over time. That’s where Newborn’s DuraCore® technology comes in. DuraCore® is engineered for the tradesman who demands long-lasting performance, smooth operation, and consistent results, job after job. DuraCore® refers to Newborn’s precision investment cast friction plate, a critical internal component responsible for engaging the rod and controlling material flow inside the caulking gun. You’ll... Read more...
How to Easily Remove Old, Moldy, and Cracked Caulk in Three Simple Steps
Do you have moldy, discolored, or cracked caulk lurking in your home’s bathrooms, kitchens, or around your windows? If you do, you’re not alone—and it’s something that really shouldn’t be ignored. Damaged caulk is more than just an eyesore; it can lead to health issues, energy efficiency problems, and even water damage if it’s allowed to persist. The good news is that removing old caulk and getting ready to lay down a fresh, clean bead isn’t nearly as complicated as you might think. With the right tools, a bit of... Read more...
How to Caulk Your Bathtub the Right Way: A Simple, Step-by-Step Guide
If you’ve got a bathtub that’s looking a bit worse for wear, or you’ve just noticed that the old caulk is starting to fail and let moisture sneak in behind the tile, it might be time to freshen things up with a brand-new bead of caulk. Now, I know it can feel a bit intimidating if you’ve never done it before, but trust me, this is absolutely a project you can handle on your own. Don’t worry if you’re not exactly a DIY pro—if you follow these simple steps, you’ll... Read more...
Drip-Free vs. Thumb Release vs. Ratchet Caulk Guns: Which Caulk Gun is Best for Your Project?
When it comes to choosing the perfect caulk gun for your project, the options can be overwhelming. Whether you’re a DIY enthusiast tackling home improvement tasks or a professional working on detailed finish work, selecting the right caulking tool can make all the difference in achieving a clean, precise, and professional looking application. In this comprehensive guide, we’ll break down the key differences between three popular types of caulk guns—drip-free, thumb release, and ratchet caulk guns—to help you understand their unique features, benefits, and which one might be the best... Read more...
Best Caulk Gun for Medium to Thick Materials (Firestop, Hybrids & Polyurethane)
When working with medium- to high-viscosity materials like firestop, hybrids, and polyurethane, the thrust ratio matters. These materials require a higher thrust ratio than standard silicone, because they are thicker and need more mechanical advantage to dispense smoothly. However, they don’t require an extremely high thrust ratio like epoxies. If the thrust ratio is too low, you’ll struggle to squeeze material out at all — leading to hand fatigue and slower work. On the flip side, if the thrust ratio is too high, less material comes out per squeeze, meaning... Read more...
How to Caulk a Bathtub: A Step-by-Step Guide for a Clean, Waterproof Seal
A properly caulked bathtub keeps water where it belongs and prevents mold, mildew, and costly damage behind your walls. Whether you're updating old, cracked caulk or sealing a brand-new tub, using the right tools makes all the difference. Here’s a simple step-by-step guide to help you get a clean, professional finish. What You’ll Need Octogun 208D – Features built-in tools attached directly to the gun to smooth and finish your bead. https://newborn-caulk-guns.myshopify.com/collections/all208d-octogun/ Octogun Removal Kit – Makes removing old caulk fast and easy. https://newborn-caulk-guns.myshopify.com/collections/alloctogun-removal-kit/ Octogun Silicone White – 100% waterproof,... Read more...
What Is Newborn’s DuraCore® Technology?
When it comes to professional caulking guns, durability and reliability matter. Whether you’re sealing windows, installing doors, or applying industrial-grade adhesives, the internal components of your tool play a major role in how well it performs over time. That’s where Newborn’s DuraCore® technology comes in. DuraCore® is engineered for the tradesman who demands long-lasting performance, smooth operation, and consistent results, job after job. DuraCore® refers to Newborn’s precision investment cast friction plate, a critical internal component responsible for engaging the rod and controlling material flow inside the caulking gun. You’ll... Read more...
What Is a Dual Thrust Gun? A Simple Guide to Every Caulker
If you’ve ever wrestled with tough sealants or struggled to get a smooth bead from your caulking gun, you’ll love what dual thrust technology brings to the table. Whether you’re a DIY homeowner or a pro contractor, understanding dual thrust guns will help you choose the right tool for every job. What “Thrust Ratio” Really Means Think of thrust ratio like the gearing on a bike. It determines how much force the caulk gun applies to the material with each pull of the trigger. A higher thrust ratio provides more power, which is ideal... Read more...
How to Clean a Bulk Caulk Gun  
How to clean a bulk caulk gun is a common question for professionals and DIYers alike. Bulk caulk guns are built to handle tough materials and repeated use—but like any tool, they perform best when they’re properly cleaned. Regular maintenance prevents buildup, keeps material flowing smoothly, and extends the life of your gun. 1. Unscrew and Remove the Nozzle  Start by unscrewing the nozzle from the gun. This gives you full access to any material left behind and makes cleaning much easier.  Use a putty knife or scraper to remove... Read more...
Newborn 250 Caulk Gun Overview
The Newborn 250 Caulk Gun is a professional-grade manual dispenser built for power, precision, and long-term durability. With an 18:1 thrust ratio, it provides smooth, consistent material flow across a wide range of sealants and adhesives, making it a reliable choice for both detailed finishing work and heavy-duty applications. https://newborn-caulk-guns.myshopify.com/collections/all250/ Designed for 10 oz. (1/10-gallon) cartridges, the Newborn 250 is compatible with silicone, polyurethane, hybrid/STP, elastomeric sealants, firestop and intumescent materials, and construction adhesives. It’s well-suited for projects including bathrooms and kitchens, windows and doors, waterproofing and restoration, glazing, and... Read more...
Using a Cartridge Gun for Beginners 
If you’re new to caulking, using a cartridge gun can feel intimidating—but with the right prep, tools, and technique, it’s one of the easiest ways to get professional-looking results. In this guide, we’ll walk through how to use a cartridge caulk gun step by step, from surface prep to a smooth finished bead.  Newborn Recommendation  For beginners, we recommend using a gun from our Octogun line, designed to make caulking easier, cleaner, and more comfortable like the 930-GTD:  Drip-Free Mechanism – Prevents excess material flow for cleaner results Patented Gator Trigger™ Comfort Grip – Ergonomic design that reduces hand fatigue... Read more...
Caulking a Window for Beginners: A Step-by-Step Guide 
Caulking a window is one of the easiest ways to improve your home’s energy efficiency, keep moisture out, and give your project a clean, finished look. If you’re new to caulking, don’t worry—this beginner-friendly guide from Newborn Caulk Guns will walk you through the process step by step. Step 1: Remove the Old Caulk  Start by removing any old or cracked caulk using a scraper tool. This step is critical—new caulk won’t adhere properly to a dirty or uneven surface. Make sure all loose material, dust, and debris are fully cleared away, so you’re working with a clean... Read more...
What Is a Backer Rod Insertion Tool (BRIT) — And Why Every Pro Should Be Using One 
When it comes to getting a long-lasting, high-performance seal, most of the success happens before the caulk ever hits the joint. That’s where backer rod—and the right tools to install it—makes all the difference. If you’ve ever dealt with joints that crack, fail, or soak up way more sealant than they should, a Backer Rod Insertion Tool (BRIT) is about to become your new best friend.  What Does a Backer Rod Insertion Tool Do?  A Backer Rod Insertion Tool is designed to quickly and cleanly seat backer rod into gaps,... Read more...
How to Load, Use, and Change Push Disks on a Dual Component Caulk Gun 
Understanding how to load, use, and change push disks on a dual component caulk gun is essential if you are working with a variety of products, with a variety of mix ratios. Dual-component dispensers rely on properly sized and aligned push disks to work with different mix ratio cartridges, and because Newborn offers some of the most versatile systems available, knowing how to swap and configure these disks ensures your gun performs exactly the way it should with the materials you are using.   Every Newborn manual and pneumatic dual-component... Read more...
Why Is My Caulk Gun Not Working? Troubleshooting Tips and Long-Term Fixes 
If you’ve ever found yourself asking, “Why is my caulk gun not working?”, you’re not alone. From stuck plungers and dripping nozzles to uneven beads, these issues can turn a simple job into a frustrating one. But here’s the thing — most caulking problems don’t come from user error; they come from the wrong tools.  That’s why at Newborn, we design products that take the hassle out of caulking altogether. You’ll get a professional-grade system built for smooth performance, strong adhesion, and long-lasting results every time. Simply put — Newborn has... Read more...
How to Choose Between a Cartridge, Sausage, and Bulk Caulking Gun 
https://youtu.be/VvEekJC14Do?si=qmy5zdW-Rvk2uSke Which caulking gun should you use — cartridge, sausage, or bulk? It’s a question nearly every contractor or DIYer faces. Choosing the right caulking gun affects not only how efficiently you work, but also how clean and professional your final results look. With three main types — cartridge, sausage, and bulk caulking guns — each offers unique advantages depending on the scale and frequency of your projects.  At Newborn, we’ve built high-performance caulking guns trusted by professionals for over 50 years. Whether you’re applying silicone, polyurethane, or other sealants, this... Read more...
How to Caulk in Tight Spaces: Techniques and Tools for a Clean Finish
A frequent question in the caulking world is, “How do I caulk in tight spaces?” Whether you’re sealing behind a sink, under trim, or inside a narrow corner, limited access can make it difficult to apply an even, smooth bead. With the right approach—and the right gear—it’s entirely manageable. The good news: with specialized tools from Newborn, you will be able to caulk in tight spaces like a pro. Step 1: Prepare the Surface Getting a lasting seal starts with thorough prep. Old caulk, paint flakes, or debris can prevent... Read more...
How to Properly Caulk an Exterior Window: A Pro’s Trusted Method
https://www.youtube.com/watch?v=FcteXF-FuwY Properly sealing your exterior windows is one of the most important home maintenance tasks you can undertake, especially as the colder months approach. Not only does it help prevent drafts and reduce energy bills, but it also protects your home from moisture damage and improves overall comfort. This comprehensive guide will walk you through the entire process of caulking an exterior window using professional-grade tools and techniques. Why Exterior Window Caulking Matters Windows are one of the most vulnerable points in your home’s exterior. Over time, the original caulking... Read more...
Drip-Free vs. Thumb Release vs. Ratchet Caulk Guns: Which Caulk Gun is Best for Your Project?
https://www.youtube.com/watch?v=yVJJUYNP2M8 When it comes to choosing the perfect caulk gun for your project, the options can be overwhelming. Whether you're a DIY enthusiast tackling home improvement tasks or a professional working on detailed finish work, selecting the right caulking tool can make all the difference in achieving a clean, precise, and professional looking application. In this comprehensive guide, we’ll break down the key differences between three popular types of caulk guns—drip-free, thumb release, and ratchet caulk guns—to help you understand their unique features, benefits, and which one might be the... Read more...
Mastering the Sausage Caulk Gun101: A Step-by-Step Guide
Welcome to your go-to resource for loading and using a sausage caulk gun. Whether you're transitioning from a cartridge gun or just starting out, this guide will walk you through every step of the process. With practical tips and insights gathered from years of experience, you'll be sealing, bonding, and caulking like a pro in no time! Understanding the Sausage Caulk Gun Before diving into the loading and usage, let’s get familiar with the sausage caulk gun itself. Unlike traditional cartridge guns, sausage guns offer unique advantages, making them a... Read more...
Troubleshooting Article
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Mastering Thrust Ratio: Your Guide to Choosing the Perfect Caulk Gun for Any Project
https://www.youtube.com/watch?v=ODf5iePqS18 Whether you’re a homeowner looking to retile the bathroom or a seasoned contractor getting ready to fill in concrete joints, selecting the right caulking or sealant gun can feel like a daunting task. With so many types of adhesives, sealants, and dispensing tools available, it’s easy to get caught up in brand names, price points, and flashy features. But amidst all these considerations, there’s one key factor that often goes overlooked: the trust ratio, which is essential for effective application. Understanding the trust ratio can greatly enhance your application... Read more...
How to Caulk Your Bathtub the Right Way: A Simple, Step-by-Step Guide
https://www.youtube.com/watch?v=pfuyNlJDNMY If you’ve got a bathtub that’s looking a bit worse for wear, or you’ve just noticed that the old caulk is starting to fail and let moisture sneak in behind the tile, it might be time to freshen things up with a brand-new bead of caulk. Now, I know it can feel a bit intimidating if you’ve never done it before, but trust me, this is absolutely a project you can handle on your own. Don’t worry if you’re not exactly a DIY pro—if you follow these simple steps,... Read more...
How to Easily Remove Old, Moldy, and Cracked Caulk in Three Simple Steps
https://www.youtube.com/watch?v=_StE-3oe-QQ Do you have moldy, discolored, or cracked caulk lurking in your home’s bathrooms, kitchens, or around your windows? If you do, you’re not alone—and it’s something that really shouldn’t be ignored. Damaged caulk is more than just an eyesore; it can lead to health issues, energy efficiency problems, and even water damage if it’s allowed to persist. The good news is that removing old caulk and getting ready to lay down a fresh, clean bead isn’t nearly as complicated as you might think. With the right tools, a bit... Read more...
How to Properly Caulk an Exterior Window Using the 720 Dual-Thrust Gun
https://www.youtube.com/watch?v=FcteXF-FuwY Hey everybody, it’s DL with Newborn Brothers here! Today, I’m going to walk you through the process of sealing up an exterior window, giving it that professional, clean finish that keeps out the elements and enhances the appearance of your home. Whether you’re new to caulking or you’ve been doing it for a while, I’ve got some tips, tricks, and insights that will help you achieve a nice, smooth bead. We’re going to be using a few specific tools and techniques that I’ve found to be a game-changer—especially the... Read more...
General Product Knowledge for Single Component Dispensers & Accessories
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Caulk Gun Tables
Use the tables below to choose the correct caulk gun for your project. We are presenting a simplified table which shows the various levels of viscosity each gun can handle.  Viscosity is the resistance of a fluid to flow; its “thickness” (i.e. low viscosity material means it is thinner). These are just general rules of thumb; when it comes to specifics about materials, we suggest you contact the material manufacturer for the best results. Each category presents a link to the section where you can find the individual model with... Read more...
Newborn vs Albion
12/10/2025– Appeals Court Upholds Newborn Brothers’ Claims in Albion False Origin Case 3/7/2024– Newborn vs Albion Official Statement 2/29/2024– Newborn vs Albion Damages Award 2/29/2024– Newborn vs Albion Court Opinion Read more...
Project Video: Bathroom Remodel (Sub-Floor Adhesive)
Brian from Newborn and Ricky Elliott from Metro Bath and Tile demonstrate using sub-floor adhesive for a bathroom remodel. Tips include using a 45-degree cut, a model 250 caulk gun, and the model 377 extender for easier application. https://www.youtube.com/watch?v=aN_7VZa0oVY Read more...
Mastering the U-Lite Drip-Free Caulk Gun: A Comprehensive Guide
https://www.youtube.com/watch?v=RRzZl4Qi458&t=2s Hi, I’m Brian Glass, an engineer here at Newborn, and I’m excited to walk you through how to use the Model U-Lite caulk gun. The U-Lite isn’t just another caulking tool—it’s a drip-free model designed to provide you with cleaner, more controlled applications of sealants and adhesives. Whether you’re a seasoned professional or a DIY enthusiast tackling your first home improvement project, understanding how the U-Lite works will make all the difference in your results. In this guide, I’ll explain the unique features of the U-Lite, demonstrate proper loading... Read more...
Mastering the Drip-Free Caulk Gun: A Comprehensive Guide to the 112D, 102D, and 189D Models
https://www.youtube.com/watch?v=YQ8rwO_4sBQ Hi, I’m Brian Glass, an engineer here at Newborn, and today I’m excited to walk you through the details of using a drip-free “C” gun with three of our most popular models. Whether you’re a seasoned professional or a first-time DIYer, understanding how these tools operate will help you achieve smooth, even beads of sealant without the frustrating mess of drips and excess material. The three models we’ll be focusing on are the: 112D: A hex rod, parallel frame model that comes equipped with a spout cutter, seal puncture... Read more...
How To Change the Push Disks on a Pneumatic Gun
Engineer Brian Glass from Newborn explains step-by-step how to change push disks on the Model 850 pneumatic gun. He covers adjusting mix ratios and aligning push disks for optimal performance in different applications. https://www.youtube.com/watch?v=LYsURrQtGMo Read more...
How To Caulk
Learn how to use the Model 111 caulk gun for a professional finish! Mariana Cuba from Warren Brothers demonstrates each step, from loading the cartridge to applying an even bead. https://www.youtube.com/watch?v=be8fkknx9AY Read more...
How To Use a Multi-Component Manual Gun
Brian Glass from Newborn demonstrates using the 535 XSP multi-component manual gun. Learn how to set up different mix ratios using push disks and stabilizing plates for versatile applications with this patented system. https://www.youtube.com/watch?v=5f1RYcDO7I8 Read more...
Newborn Model 385 Caulk Gun for 3M FIP Foam
Learn how to use Newborn’s Model 385 Caulk Gun with 3M FIP Foam. This guide covers setup and application tips for achieving efficient, professional results with foam sealant. https://www.youtube.com/watch?v=lvVFvPQgbks Read more...
How To Use Dripless On Demand
Brian Glass demonstrates Newborn’s 114D caulk gun, highlighting its patented Dripless on Demand and Adjustable Stroke features for controlled, efficient material flow and customizable thrust. https://www.youtube.com/watch?v=jqoqHLY0FbI Read more...
How To Choose the Right Cartridge Gun
Bruce Richards from Newborn explains how to choose the right cartridge gun. Consider your material’s thickness—thicker materials need higher power and thrust. Explore the Gator Trigger series for options suited to your specific application needs. https://www.youtube.com/watch?v=szoCXPqZ2dk&embeds_referring_euri=https%3A%2F%2Fnewborn-caulk-guns.myshopify.com%2F Read more...