Can i install this caulk over mapei ivory caulk in a shower corner where the grout has cracked? what preparation is needed in this situation?

There is wording on the caulk tube "not for use in areas prone to constant water exposure".

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Mapei Keracaulk S Premium, Paintable, Sanded, Siliconized Acrylic Caulk, Expertly Formulated to Match Grout Colors, 10 oz., 5039 Ivory- Sanded

Product ID: 42607322

Details

Color
Ivory
Brand
Mapei
Item Weight
16 ounces
Liquid Volume
10.5 Fluid
Item Form
Paste

🎨Paintable to match grout colors

💧Waterproof seal for wet areas

🛠️Siliconized acrylic for durability

S$42

Duties & taxes included

In stock

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Description

🎯 Nail the perfect seal with Mapei Keracaulk S — where durability meets design.

EFFORTLESS CLEANUP - Smooth application with minimal mess and easy water cleanup saves you time and frustration on every project.
SEAMLESS GROUT MATCH - Expertly formulated to blend perfectly with grout, giving your tile work a flawless, professional finish.
PRECISION APPLICATION - Ideal for tight joints and intricate tile edges, delivering a clean, polished seal every time.
VERSATILE INTERIOR USE - Perfect for kitchens, bathrooms, backsplashes, and commercial spaces—seal with confidence anywhere.
DURABLE SILICONIZED FORMULA - Premium sanded siliconized acrylic ensures long-lasting flexibility and crack resistance in high-moisture environments.

Mapei Keracaulk S Premium is a 10 oz. sanded, siliconized acrylic caulk designed for interior tile applications. It offers a waterproof, paintable seal that matches grout colors for a seamless look. Its durable formula resists cracking and is easy to apply and clean, making it ideal for kitchens, bathrooms, and backsplashes in both residential and commercial settings.

Specifications

ASIN	B01186S7WC
Best Sellers Rank	#5,795 in Industrial & Scientific ( See Top 100 in Industrial & Scientific ) #23 in Silicone Caulk #211 in Industrial Sealants
Brand	Mapei
Brand Name	Mapei
Color	Ivory
Customer Reviews	4.3 out of 5 stars 34 Reviews
Included Components	Keracaulk
Item Form	Paste
Item Weight	16 ounces
Manufacturer	Mapei
Material Type	Siliconized Acrylic
Maximum Gap Fill	0.25 inches
Number of Items	1
Number of Packs	1
Part Number	4JA503933
Surface Recommendation	Tile
UPC	093994539670
Unit Count	1 Count
Water Resistance Level	Waterproof

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