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