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MAPEI Mapelastic CI Crack-Isolation Membrane – 1 Gallon

MAPEI Mapelastic CI Crack-Isolation Membrane – 1 Gallon

Mapelastic CI Roller-Applied Crack-Isolation Membrane

Premixed, liquid-rubber membrane designed to isolate nonstructural in-plane cracks under tile and stone. Quick-drying and ready for polymer-modified or epoxy mortars, it meets ANSI A118.12 to help prevent cracks up to 1/8 inch from telegraphing through finishes.


Key Features:

  • Quick-Drying Protection: Dries in about 30–50 minutes for faster installs
  • ANSI A118.12 Compliant: Isolates in-plane floor cracks up to 1/8 in. (3 mm)
  • Ready-to-Use Formula: Premixed, liquid-rubber membrane rolls on easily
  • Versatile Application: For residential/commercial, interior/exterior under tile and stone
  • Compatible Adhesives: Accepts most MAPEI polymer-modified or epoxy mortars

Please check the Product Data Sheet Here


Specifications Table:

Specification Details
Product name Mapelastic CI
Format Premixed, liquid-rubber membrane
Application method Roller-applied
Dry time before setting About 30–50 minutes (when fully dry)
Standards Meets ANSI A118.12
Function Prevents nonstructural, in-plane floor cracks up to 1/8 in. (3 mm) from transferring through tile/stone
Use cases Under ceramic tile or stone; residential and commercial; interior and exterior
Compatible mortars Most MAPEI polymer-modified or epoxy mortars
Package shown 1 U.S. gallon (3.79 L)

Frequently Asked Questions (FAQ):

Q: What substrates and areas can I use Mapelastic CI on?
A: It is for residential and commercial interior or exterior installations under ceramic tile and stone to isolate nonstructural in-plane cracks.


Q: How long before I can set tile over the membrane?
A: Typically 30 to 50 minutes after application, once the membrane has fully dried.


Q: What crack movement does it handle?
A: It helps prevent nonstructural, in-plane cracks up to 1/8 inch (3 mm) from transferring through tile or stone.


Q: Do I need to mix it before use?
A: No. It is a premixed, ready-to-use liquid rubber applied with a roller.


Q: Which mortars are compatible?
A: Most MAPEI polymer-modified or epoxy mortars are suitable once the membrane is dry.


Sleek Surface Security for Statement Floors

When crafting a seamless, gallery-worthy floor, Mapelastic CI becomes your quiet hero—erasing the anxiety of hairline cracks beneath luxurious stone or porcelain. Its silky, roll-on application creates a discreet shield that preserves the elegance of your finish. Use it beneath large-format tile to keep lines crisp and uninterrupted. It’s a refined essential for achieving resilient, carefree luxury underfoot.


Protect your tile or stone investment—add Mapelastic CI to your prep and install with confidence today.

$127.71
MAPEI Mapelastic CI Crack-Isolation Membrane – 1 Gallon
$127.71

Product Information

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Description

Mapelastic CI Roller-Applied Crack-Isolation Membrane

Premixed, liquid-rubber membrane designed to isolate nonstructural in-plane cracks under tile and stone. Quick-drying and ready for polymer-modified or epoxy mortars, it meets ANSI A118.12 to help prevent cracks up to 1/8 inch from telegraphing through finishes.


Key Features:

  • Quick-Drying Protection: Dries in about 30–50 minutes for faster installs
  • ANSI A118.12 Compliant: Isolates in-plane floor cracks up to 1/8 in. (3 mm)
  • Ready-to-Use Formula: Premixed, liquid-rubber membrane rolls on easily
  • Versatile Application: For residential/commercial, interior/exterior under tile and stone
  • Compatible Adhesives: Accepts most MAPEI polymer-modified or epoxy mortars

Please check the Product Data Sheet Here


Specifications Table:

Specification Details
Product name Mapelastic CI
Format Premixed, liquid-rubber membrane
Application method Roller-applied
Dry time before setting About 30–50 minutes (when fully dry)
Standards Meets ANSI A118.12
Function Prevents nonstructural, in-plane floor cracks up to 1/8 in. (3 mm) from transferring through tile/stone
Use cases Under ceramic tile or stone; residential and commercial; interior and exterior
Compatible mortars Most MAPEI polymer-modified or epoxy mortars
Package shown 1 U.S. gallon (3.79 L)

Frequently Asked Questions (FAQ):

Q: What substrates and areas can I use Mapelastic CI on?
A: It is for residential and commercial interior or exterior installations under ceramic tile and stone to isolate nonstructural in-plane cracks.


Q: How long before I can set tile over the membrane?
A: Typically 30 to 50 minutes after application, once the membrane has fully dried.


Q: What crack movement does it handle?
A: It helps prevent nonstructural, in-plane cracks up to 1/8 inch (3 mm) from transferring through tile or stone.


Q: Do I need to mix it before use?
A: No. It is a premixed, ready-to-use liquid rubber applied with a roller.


Q: Which mortars are compatible?
A: Most MAPEI polymer-modified or epoxy mortars are suitable once the membrane is dry.


Sleek Surface Security for Statement Floors

When crafting a seamless, gallery-worthy floor, Mapelastic CI becomes your quiet hero—erasing the anxiety of hairline cracks beneath luxurious stone or porcelain. Its silky, roll-on application creates a discreet shield that preserves the elegance of your finish. Use it beneath large-format tile to keep lines crisp and uninterrupted. It’s a refined essential for achieving resilient, carefree luxury underfoot.


Protect your tile or stone investment—add Mapelastic CI to your prep and install with confidence today.

MAPEI Mapelastic CI Crack-Isolation Membrane – 1 Gallon | Super Arbor