204 Pure Steel Mapesil 3D Silicone Caulk
SKU: 78370826593

204 Pure Steel Mapesil 3D Silicone Caulk

Sale price$15.14 Regular price$16.82
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Ships within 48 hours · Estimated delivery Jul 6 - Jul 11

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Description

204 Pure Steel Mapesil 3D Silicone CaulkMapesil 3D Silicone Caulk 204 Pure Steel Professional grade, 100% silicone sealant designed to match MAPEI Flexcolor 3D grout. Ideal for sealing joints on multiple substrates in kitchens, baths, and tile installations. Key Features: Color Matched Finish: Formulated to directly match MAPEI Flexcolor 3D grout colors for cohesive installations 100% Silicone Performance: Excellent flexibility and water resistance for wet areas and movement joints Multi

Mapesil 3D Silicone Caulk – 204 Pure Steel

Professional-grade, 100% silicone sealant designed to match MAPEI Flexcolor 3D grout. Ideal for sealing joints on multiple substrates in kitchens, baths, and tile installations.


Key Features:

  • Color-Matched Finish: Formulated to directly match MAPEI Flexcolor 3D grout colors for cohesive installations
  • 100% Silicone Performance: Excellent flexibility and water resistance for wet areas and movement joints
  • Multi-Substrate Use: Adheres to common surfaces found in tile, glass, and stone applications
  • Professional-Grade Durability: Long-lasting seal that resists cracking and shrinking
  • Easy Application: Cartridge format for smooth gunning and clean tooling

Please check the Product Data Sheet Here


Specifications Table:

Specification Details
Product name Mapesil 3D Silicone Caulk
Color 204 Pure Steel
Composition 100% silicone, neutral cure
Intended use Sealing movement and expansion joints around tile, glass, and stone; wet areas such as showers and backsplashes
Color match Formulated to directly match MAPEI Flexcolor 3D grout

Frequently Asked Questions (FAQ):

Q: Is this caulk paintable?
A: No. As a 100% silicone sealant, it is not paintable; select the correct color to match your grout.


Q: Where can I use Mapesil 3D?
A: Use for interior or exterior movement and expansion joints around tile, glass, and stone, including showers, backsplashes, and countertops.


Q: Does it match MAPEI Flexcolor 3D grout?
A: Yes, Mapesil 3D is formulated for direct color matches to Flexcolor 3D grout.


Q: What is the base chemistry?
A: It is a 100% silicone, neutral-cure sealant.


A Seamless, Luminous Finish for Sophisticated Surfaces

Mapesil 3D in 204 Pure Steel lends a polished, modern edge to tilework, creating a subtle, light-catching seam that elevates the entire installation. Its standout feature is the precise color harmony with Flexcolor 3D grout, delivering an uninterrupted visual story. Pair it with glass mosaics or brushed metal accents for a refined, gallery-like effect. It’s the final, luxurious detail that makes your space feel impeccably finished.


Complete your tile project with a flawless, color-matched seal—choose Mapesil 3D in 204 Pure Steel today.

Shipping Notes
  • Free Standard Shipping on $100+ Orders to the USA.
  • Except Preorder products are shipped in 48 hours.
  • Delivery to the USA:
  1. Standard Shipping : 3-10 business days
  • If time is of the essence, please consider selecting expedited delivery for faster service.
Exchange/Return Notes
  • We offer a 30-day return/exchange service after receiving.
  • Final sale items are not eligible for returns or exchanges.
  • To process your return/exchange, please contact us at [email protected]
  • Please click here for more details>>> Return & Exchange Policy
SKU: 78370826593

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Verified Purchase
Lyrah
Lexington, US
★★★★★ 5
Very efficient!
Model: NewSLS50_52
Amazing the difference it makes on dumping the noise. Very easy to install. Pell and stick literally! Great!
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on November 23, 2025
S
Verified Purchase
SMK
Fort Morgan, US
★★★★★ 5
This will work but prep is key!
I have an older RV that the gelcoat has dulled and is oxidized, but otherwise in good shape. I have buffed and polished in the past only for it to last a short time. I was looking up different products to try and this one has such good reviews, I thought I would give it a try. I bought the kit with the Poliglow and the Poliprep, with the scrubber and the microfiber glove. I started with the poliprep and it did a great job of gettting the streaks and black marks off. You spend a lot of time scrubbing to your likeness because anything that is still on the gelcoat when you apply the poliglow, it will be locked in there. The Poliglow is like a clearcoat that goes over the gelcoat. You have to build up layers and here are some of the tips and tricks I figured out that really helped my finished RV look great. First, make sure the applicator stays damp, this keeps the poliglow more uniform across the glove. Also, stick it in a zip lock bag when not using, you do not want it to dry out while you are using it. I found out that applying this in direct sunlight in warm temps, is the best method. This allows the poliglow to dry really fast. The first 3 or 4 layers will look streaky and dull but this is ok and as you build up the layers, the shine will come back. I found if you do this when its cooler, the layers do not dry as quick and you will get some permanent streaking or running. I had to remove a section I did in the evening because I noticed this. When in direct sunlight, this gave me the best results with no streaking or running. It dries fast and you can keep working. Like it says, do not do big sections at a time, keep it to small what you can reach sections and build those up and move on. As far as how much to buy? I have a 40 ft toy hauler and I got to kits and I had just enough to finish the whole thing minus the nose cap. I have Durabak on the nose cap, so I dont need to worry about that. I ended up buying one more bottle of the poliglow to have for my maintenance coats. Overall, I am pleased with how my 10 year old RV looks and other than some of the decals show age, it looks new again. If I were to buy a new RV, I would put this on right away and preserve the whole RV including the decals. Its not too expensive and its a lot of work, especially the prep, but it does end up with great results.
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Reviewed in the United States on July 21, 2023
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Verified Purchase
Gary Watkins
Bozeman, US
★★★★★ 5
Excellent shine
Excellent line of products. Looking at the picture, you can see what the camper looked like before the Poli Glow. To the left of the window is the after Poli Glow. It takes some elbow grease (follow instructions well) but well worth it.
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Reviewed in the United States on May 26, 2026
E
Verified Purchase
East Coast Curt
Chelsea, US
★★★★★ 5
Camping enthusiast approved
One bottle covered my 20ft camping trailer 4 coats and with a little remaining for future touch ups. It definitely increases the gloss. I'm glad I didn't waste my time with wax. This is like an easy wipe on clear coat. I will report back in the future for longevity.
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Reviewed in the United States on May 24, 2026
A
Verified Purchase
Amazon Customer
Phoenix, US
★★★★★ 4
buy more than you think your going to need to get a great shine and look!!
great product and leaves a great shine. The Poli Glow doesn't go as far as the video states and it depends on condition of RV, boat...This is a great product but takes more to get a great shine!!
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Reviewed in the United States on April 16, 2026

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