---
product_id: 39581157
title: "Mapei Keracaulk S Premium, Paintable, Sanded, Siliconized Acrylic Caulk, Expertly Formulated to Match Grout Colors, 10 oz., 5038 Avalanche- Sanded"
brand: "mapei"
price: "$86"
currency: NZD
in_stock: true
reviews_count: 9
category: "Mapei"
url: https://www.desertcart.nz/products/39581157-mapei-keracaulk-s-premium-paintable-sanded-siliconized-acrylic-caulk-expertly
store_origin: NZ
region: New Zealand
---

# Waterproof siliconized acrylic 4-hour full cure time 225 PSI tensile strength Mapei Keracaulk S Premium, Paintable, Sanded, Siliconized Acrylic Caulk, Expertly Formulated to Match Grout Colors, 10 oz., 5038 Avalanche- Sanded

**Brand:** mapei
**Price:** $86
**Availability:** ✅ In Stock

## Summary

> 🔧 Seal like a pro, finish like a boss.

## Quick Answers

- **What is this?** Mapei Keracaulk S Premium, Paintable, Sanded, Siliconized Acrylic Caulk, Expertly Formulated to Match Grout Colors, 10 oz., 5038 Avalanche- Sanded by mapei
- **How much does it cost?** $86 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.nz](https://www.desertcart.nz/products/39581157-mapei-keracaulk-s-premium-paintable-sanded-siliconized-acrylic-caulk-expertly)

## Best For

- mapei enthusiasts

## Why This Product

- Trusted mapei brand quality
- Free international shipping included
- Worldwide delivery with tracking
- 15-day hassle-free returns

## Key Features

- • **Fast & Efficient:** Full cure in just 4 hours—get your projects done without delay.
- • **Precision Perfect:** Sanded texture for flawless, grout-matching finishes on tight joints and edges.
- • **Pro-Grade Durability:** Siliconized acrylic blend ensures long-lasting, crack-resistant seals.
- • **Effortless Application:** Smooth paste formula with easy cleanup saves you time and hassle.
- • **Versatile Interior Seal:** Ideal for kitchens, bathrooms, backsplashes, and commercial spaces.

## Overview

Mapei Keracaulk S Premium is a 10 oz. sanded, siliconized acrylic caulk designed for interior use. It offers a durable, waterproof seal with a tensile strength of 225 PSI and cures fully in 4 hours. Perfectly color-matched to grout, it delivers professional-grade results on tile, countertops, sinks, and more, making it the go-to choice for precision sealing in both residential and commercial projects.

## Description

Premium Unsanded Siliconized Formula: Mapei Keracaulk U is crafted with a high-performance siliconized acrylic blend, offering enhanced durability and a smooth, sanded texture for professional-grade results, Versatile for Interior Projects: Ideal for kitchens, bathrooms, backsplashes, and more, it delivers a reliable seal for joints, edges, and gaps in both residential and commercial applications, Ideal for Precision Sealing: Perfect for tight joints, edges, and intricate tile work, delivering a neat and reliable seal for a polished appearance, Easy to Use and Clean: Designed for hassle-free application, Mapei Keracaulk ensures smooth sealing with minimal effort and easy cleanup, saving you time on your projects, Mapei Adhesives, Sealants, Chemical Products for Building that are Designed for Easy, Efficient Application

Review: Great product! - Great product!
Review: Good Quality - Great color match!

## Features

- Premium Sanded Siliconized Formula: Mapei Keracaulk S is crafted with a high-performance siliconized acrylic blend, offering enhanced durability and a smooth, sanded texture for professional-grade results
- Versatile for Interior Projects: Ideal for kitchens, bathrooms, backsplashes, and more, it delivers a reliable seal for joints, edges, and gaps in both residential and commercial applications
- Ideal for Precision Sealing: Perfect for tight joints, edges, and intricate tile work, delivering a neat and reliable seal for a polished appearance
- Easy to Use and Clean: Designed for hassle-free application, Mapei Keracaulk S ensures smooth sealing with minimal effort and easy cleanup, saving you time on your projects
- Mapei Adhesives, Sealants, Chemical Products for Building that are Designed for Easy, Efficient Application

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B01186S6XM |
| Best Sellers Rank | #5,877 in Industrial & Scientific ( See Top 100 in Industrial & Scientific ) #22 in Silicone Caulk |
| Brand | Mapei |
| Color | Avalanche |
| Date First Available | July 8, 2015 |
| Full Cure Time | 4 Hours |
| Item Form | Paste |
| Item Weight | 1 pounds |
| Liquid Volume | 10.5 Fluid Ounces |
| Manufacturer | Mapei |
| Material | Siliconized Acrylic |
| Maximum Gap Fill | 6 Millimeters |
| Number of Items | 1 |
| Product Dimensions | 11 x 2 x 2 inches |
| Surface Recommendation | Tile, Pipe, Counter Top, Window, Door, Sink, Tub, Walls, Gutter |
| Tensile Strength | 225 Pounds Per Square Inch |
| UPC | 093994538673 |
| Unit Count | 1.0 Count |
| Water Resistance Level | Waterproof |

## Product Details

- **Brand:** Mapei
- **Color:** Avalanche
- **Full Cure Time:** 4 Hours
- **Item Weight:** 16 ounces
- **Liquid Volume:** 10.5 Fluid Ounces

## Images

![Mapei Keracaulk S Premium, Paintable, Sanded, Siliconized Acrylic Caulk, Expertly Formulated to Match Grout Colors, 10 oz., 5038 Avalanche- Sanded - Image 1](https://m.media-amazon.com/images/I/61sRGFPeMoL.jpg)

## Available Options

This product comes in different **Style** options.

## Questions & Answers

**Q: Does this work well for showers?  is it waterproof?  Thx!**
A: I used in a shower in a couple locations.  It dries hard.

**Q: Is avalanche a grey or a white ? even though i have frost grout, this looks like a better match than the frost caulk which seems like a darker grey.**
A: Avalanche is white in color.

**Q: Is this  product waterproof? I need to use it to re-caulk my shower before I paint the tiles. Thank you.**
A: Dear Customer,
Accordingly with manufactor's recommendation, you can use it 
• For caulking around sinks, tubs, showers, countertops and ceramic tile floors

BUT:
Do not use for exterior projects or applications subject to constant water
immersion

I hope this can help with your decision. Thank you.
Any questions please let us know.

**Q: Will this hold up as a repair for cracked grout on the bathroom floor?**
A: Hello,
Yes, it will help you with repairing the cracked grout. Make sure to follow the instructions before you apply it on the floor. Any questions, let us know. Thank you.

## Customer Reviews

### ⭐⭐⭐⭐⭐ Great product!
*by L***. on January 26, 2026*

Great product!

### ⭐⭐⭐⭐⭐ Good Quality
*by S***7 on October 23, 2025*

Great color match!

### ⭐⭐⭐⭐⭐ Sanded grout almost, matches perfectly
*by T***S on October 28, 2025*

This sanded grout matches almost perfectly and was really easy to work with. You can’t even tell it’s caulking. I caulked along backsplash where it meets the tile because of cracking in the grout. Once I removed some of the grout I was able to make smooth lines that flex now. No more cracked grout line behind the kitchen sink! Once you apply it don’t try to rework or rub it too much when cleaning or you will wipe away the sand from the silicone caulking. Highly recommended.

## Frequently Bought Together

- Mapei Keracaulk S Premium, Paintable, Sanded, Siliconized Acrylic Caulk, Expertly Formulated to Match Grout Colors, 10 oz., 5038 Avalanche- Sanded
- MAPEI Ultracolor Plus FA Powder Grout - 10LB/Bag - (38 Avalanche)
- KERACAULK U Mapei Unsanded Caulk (Avalanche) - 10.5-oz (10.5)

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---

*Product available on Desertcart New Zealand*
*Store origin: NZ*
*Last updated: 2026-03-06*