Kitchen & Bath Caulk That Actually Works
Alkoxy + oxime neutral-cure silicone
Most bathroom caulk comes in too many formulas. Some stick to acrylic, others don't. Some stink, others crack. We solved that with two professional-grade silicones engineered for bathrooms and kitchens, mold-resistant, waterproof, flexible, and built for the life of the joint.
Acrylic tub or surround? Take the white. The white alkoxy formula is rated for acrylic, which is the most common bath substrate in the country and the one plenty of silicones peel off. The clear is an oxime chemistry and it stress-crazes acrylic, so it is for glass, tile, stone and metal.
10 fl oz / 300 mL · Hyper Stretch™
Free shipping on orders over $25. One cartridge is $13.99, so any two ship free.
- 100
- 200
- 300
- 400
- 500
- 600
- 700
- 800
- 900
- 1000
Confirmed, white formula. Elongation at break on the white alkoxy silicone. The clear is a different chemistry and measures 500%, from its own datasheet.
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Benefits
- Mold, mildew & bacteria resistant
- Works on acrylic, tile, glass, stone, porcelain
- Permanently flexible
- Low odor, professional-grade
- Backed by the Newborn guarantee
Product details
Octogun Silicone est le
meilleur silicone pour les applications professionnelles de scellement et de collage
, offrant des performances et une polyvalence de nouvelle génération. Ce mastic silicone alkoxy de qualité supérieure
offre une adhérence, une durabilité et une finition nette supérieures sur une large gamme de matériaux. Contrairement aux silicones acétoxy ou oxime traditionnels, la formule à polymérisation neutre d'Octogun
produit peu ou pas d'odeur, ne corrode pas les métaux et forme une liaison durable sur le verre, les plastiques, l'acrylique, la maçonnerie et la pierre naturelle.
Conçu pour des résultats de qualité professionnelle, Octogun Silicone est le meilleur silicone pour les salles de bain, les cuisines, les fenêtres et les projets extérieurs
. Son joint souple et résistant aux intempéries résiste à l'exposition aux UV, à l'humidité et aux températures extrêmes sans se fissurer, rétrécir ou jaunir. La formulation 100 % étanche assure une protection durable et un aspect lisse et professionnel à chaque fois.
Parce qu'il durcit en libérant de l'alcool plutôt que des produits chimiques plus agressifs, Octogun Silicone est plus sûr à utiliser, plus facile à appliquer et laisse une finition de haute qualité qui résiste aux taches et au vieillissement au fil du temps.
Caractéristiques principales :
Formule de nouvelle génération :
Silicone alkoxy de qualité supérieure pour des performances durables et supérieures
Meilleur silicone pour de multiples surfaces :
Adhère au verre, aux plastiques, à l'acrylique, à la maçonnerie et à la pierre naturelle
Adhérence supérieure :
Adhérence plus forte et plus durable que les silicones standard
Joint flexible et résistant aux fissures :
Se dilate et se contracte sans se détériorer
Faible odeur, polymérisation neutre :
Pas d'odeur de vinaigre agressif ni de corrosion sur les métaux
100 % étanche : Le meilleur mastic silicone pour les environnements humides ou très humides
Octogun Silicone — le meilleur choix pour les professionnels qui ont besoin d'un joint plus solide, plus propre et plus durable.
Two different silicones. Where a figure differs, the formula is named.
How to use
- Clean the joint with solvent, not detergent and water. That is what most people reach for on a tub and it is what leaves the bead to fail.
- White on acrylic tubs and surrounds. Clear on glass, tile, stone and metal.
- Run it with a drip-free gun, the 930-GTD or the 208D. A thin silicone runs on after you let go.
- Tool the bead before it skins: 30 minutes on the white, 10 on the clear.
Where not to use it
From the manufacturer's datasheet for the clear formula. The white and the clear are different chemistries, so they exclude different things.
- Clear is not for acrylic. The oxime formula stress-crazes acrylic. Use the white on acrylic tubs and surrounds
- Not on surfaces in direct contact with food
- Not above 85% relative humidity, and not on wet or damp surfaces. Let a shower dry before you seal it
- Not for continuous immersion or below-grade use
- Not paintable. It is silicone
- Not on polycarbonate, self-cleaning glass or non-staining fluorine coatings
- Not for structural, insulating or weather glazing, and not for sticking glass
- Not on substrates below 5°C or above 50°C, or over 6% moisture content
Surface preparation: clean with solvent. Do not use detergent, soap and water, which is what most people reach for on a tub.
Documents & guarantee
Everything a spec buyer asks for before an order, in one place.
- Safety Data Sheet, Kitchen & Bath. Request a copy
- Technical Data Sheet, Kitchen & Bath. Request a copy
- Every figure on this page comes off these two documents
- Covered for as long as you own your home
- Printed on the tube, not a supplier's policy borrowed into our copy
- Family-owned and building sealant tools since 1974
- Ask us where to buy near you
- Same cartridge, same guarantee, off your usual counter
- Not stocked yet? Ask for it and tell us where
Elongation: 600% · Confirmed, white formula
Pack Pricing
One ladder, per-tube price on every row. The ten-case tier is the floor: a quarter off, and no further.
| Pack | Order | Contains | Price | Per cartridge | Saving | Add to cart |
|---|---|---|---|---|---|---|
| White | ||||||
| Single | M-AP-WHITE | 1 cartridge | $13.99 | $13.99 | – | |
| 2-pack | M-AP-WHITE-2PK | 2 cartridges | $26.99 | $13.49 | 4% off | |
| 6-pack | M-AP-WHITE-6PK | 6 cartridges | $78.99 | $13.16 | 6% off | |
| Case of 12 | M-AP-WHITE-12PK | 12 cartridges | $139.99 | $11.66 | 17% off | |
| 5 cases | M-AP-WHITE-60PK | 60 cartridges | $663.99 | $11.06 | 21% off | |
| 10 cases | M-AP-WHITE-120PK | 120 cartridges | $1,259.99 | $10.49 | 25% off | |
| Clear | ||||||
| Single | M-AP-CLEAR | 1 cartridge | $13.99 | $13.99 | – | |
| 2-pack | M-AP-CLEAR-2PK | 2 cartridges | $26.99 | $13.49 | 4% off | |
| 6-pack | M-AP-CLEAR-6PK | 6 cartridges | $78.99 | $13.16 | 6% off | |
| Case of 12 | M-AP-CLEAR-12PK | 12 cartridges | $139.99 | $11.66 | 17% off | |
| 5 cases | M-AP-CLEAR-60PK | 60 cartridges | $663.99 | $11.06 | 21% off | |
| 10 cases | M-AP-CLEAR-120PK | 120 cartridges | $1,259.99 | $10.49 | 25% off | |
- 1x
- 2x
- 3x
- 4x
- 5x
- 600%
Diagram, drawn to scale off the datasheet figure: the bead reaches six times its rest length before it breaks. Not a photograph.
Compare It With The Others
Elongation at break on one scale. Pick any other formula in the line and the bars show how far each stretches from the same rest length, so a 350% bead and a 700% bead read as different here as they are in the joint. More stretch is not always the answer, which is why the facts underneath say what each one is for.
Why Most Silicone Will Not Hold On An Acrylic Tub
Most of the silicone on the shelf cures one of two ways, and neither one is made for acrylic. Acetoxy silicones cure by releasing acetic acid, which is the vinegar smell. Oxime silicones cure by releasing an oxime. Both bond poorly to acrylic and both can stress-craze it, so the bead that looked fine on the day lets go of the tub surround a season later. That is the failure most people have already had with a bathroom caulk.
What we did about it
The white Kitchen & Bath formula cures on an alkoxy system instead. It is rated for acrylic, it bonds to it, and it does it without the smell. The clear formula is an oxime, which is why it is for glass, tile, stone and metal and never for the acrylic tub itself.
- Acrylic tub or surround: the white, every time
- Glass, tile, stone and metal: white or clear
- Neither formula is an acetoxy, so neither smells of vinegar while it cures
The Jobs It’s For
Two silicones, and the three jobs a bathroom actually asks for. White on acrylic, clear where a white bead would show.
Tub and shower surround
The joint that fails firstThe acrylic tub line is where a bathroom caulk is asked to do the most: constant wet, constant movement, and a substrate most silicones peel off. This is the white formula's job.
Sink and countertop
The kitchen sideAround a sink, along a backsplash, and where a countertop meets the wall. Waterproof the day it cures, and still flexible years later rather than hardening off.
Glass shower door and tile
Where the clear goesFrameless glass to tile, and tile-to-glass transitions where a white bead would read as a line across the design. This is the clear formula, and it is the one that is not for acrylic.
Two Formulas for Everything
Most brands make 5 to 10 different kitchen and bath caulks. We made two, because that is all bathrooms actually need. White for most surfaces. Clear for glass and design.
- Best for acrylic bathtubs & fiberglass showers
- Mold & mildew resistant
- Works on tile, glass, porcelain, metal
- Tack-free in 30 minutes
- Low odor formula
- ±25% movement, ASTM C920 Class 25
Use for: Bathtubs, showers, sinks, tile. The workhorse formula. When in doubt, use white. See the white →
- Glass shower doors and tile transitions
- Mold & mildew resistant
- Transparent, stays invisible
- Tack-free in 10 minutes
- Low odor formula
- Not for acrylic. Use White on acrylic tubs
Use for: Glass, and any application where white doesn't fit the design. Invisible when it counts.
Why We Don't Make 10 Different Formulas
Other brands create different versions for "kitchen," "bath," "acrylic tubs," "tile," and "clear" applications. This confuses customers and adds cost without adding performance.
Our approach:
- White formula bonds to everything in a bathroom. It is engineered for acrylic, tile, glass, porcelain, and metal
- Clear formula is for when design matters, glass shower doors and tile-to-glass transitions where white doesn't fit
- Both are mold-resistant, waterproof, permanently flexible, and last the life of the joint
- Two formulas eliminate confusion. One application per job. Professional durability every time.
Why Bathroom Caulk Fails (And Ours Doesn't)
Most caulks fail because they don't stick to acrylic, crack under humidity, or grow mold. Here's what we engineered differently.
Grabs
Professional adhesion to acrylic, tile, glass, stone, metal. Most silicones slip off acrylic. Ours sticks. That's the engineering difference.
Stretches
Permanently flexible. As the bathroom swings through temperature and humidity cycles, the bead moves without cracking or separating.
Holds
Backed by the Newborn guarantee with mold-resistant, bacteria-inhibiting properties. No annual replacement cycles. No mystery failures.
Deals On Now
- Buy a case, get a case free. Add 24 tubes and 12 of them come off the price. Mix white, clear and any pack size.
- Free Model 930-GTD over $300. We add it to your cart and it rings up free at checkout.
- Free shipping on orders over $25.
Octogun red, drip-free
Use the 930-GTD or 208D with this one, because a thinner silicone runs on after you let go, and the drip-free mechanism is what stops it.
How to choose a gun →
Try it on a real joint first
If you caulk for a living we will send a cartridge of Kitchen & Bath at no charge, freight included, so you can put it in the job you would have used your usual caulk on. One request per company, and there is nothing to buy.
Professional Kitchen & Bath Caulk. Trusted. Durable. Mold-Resistant.
Built for high-moisture environments where failure isn't an option. White and clear formulas for every bathroom application, both backed by the Newborn guarantee.
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