SKU: 74768181476

MAPEI Mapelastic CI Crack-Isolation Membrane – 1 Gallon

Sale price$114.94 Regular price$127.71
Save 10%

Shipping Estimate
USA
  • USA
  • CAN

Ships within 48 hours · Estimated delivery Jul 10 - Jul 15

Promo Codes Available:

For Your Every Summer RSVP, with Code: SUMMER15

Description

MAPEI Mapelastic CI Crack-Isolation Membrane – 1 GallonMapelastic 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 3050 minutes for faster installs ANSI A118. 12 Compliant: Isolates in plane floor

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.

Shipping Notes
  • Free Standard Shipping on $100+ Orders to the USA.
  • Except Preorder products are shipped in 48 hours.
  • Delivery to the USA:
  1. Standard Shipping : 3-10 business days
  • If time is of the essence, please consider selecting expedited delivery for faster service.
Exchange/Return Notes
  • We offer a 30-day return/exchange service after receiving.
  • Final sale items are not eligible for returns or exchanges.
  • To process your return/exchange, please contact us at [email protected]
  • Please click here for more details>>> Return & Exchange Policy
SKU: 74768181476

Discover Niche Categories That Outsell

Top-Converting Item to Boost Your Average Order

4.9 ★★★★★
Based on 2485 reviews
Sort
Highest Rating
Newest First
Oldest First
Product Reviews
S
Verified Purchase
Susie Lou
Pawtucket, US
★★★★★ 5
Great product
Size: 5 Quart Jug
Exactly what I needed. Great price! Fits well for my vehicle.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on February 24, 2026
J
Verified Purchase
Jawad C
Draper, US
★★★★★ 5
works well in Subaru
Size: 5 Quart Jug
nice replacement of the OEM fluid, this is my 2nd time purchase
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on April 13, 2026
J
Verified Purchase
JH
Port Orchard, US
★★★★★ 5
Great stuff
Great stuff for my mercury motor. Did the oil change myself and saved lots of money from what the dealer charges.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 10, 2025
A
Verified Purchase
Aaron O
Lexington, US
★★★★★ 5
Good quality good price.
At under $10/qt for high quality marine full synthetic, this is one of the best deals on Amazon. Other marine oils are upwards of $20/qt where I live and having twin outboards that require a total of 8.5qts each every change, that is a real savings. The other great thing about this oil is it’s packaging. The shape of the container and the pull out spout make it easy to pour. I don’t need to use a funnel with these and I didn’t spill a drop.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on January 30, 2023
J
Verified Purchase
Jack
San Leandro, US
★★★★★ 5
High quality oil
Liquid moly oil is great stuff. I bought this for my Honda 9.9 outboard. I’m sure non marine grade oil would have been fine, but for the price and quality of this oil why not use it.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 5, 2024

recommand products