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:

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.