Polymer Modified Crack Isolation Mortars

IsoLight™ - Lightweight 1/8" Crack Isolation Mortar

IsoLight™ - Lightweight 1/8" Crack Isolation Mortar

A lightweight mortar that protects tile from up to 1/8" (3mm) substrate cracking from in-plane horizontal substrate movement. For use over plywood, cementitious surfaces and other substrates.


  • Formulated with Easy Trowel Technology™ for superior handling.
  • Extended open time for improved speed and productivity.
  • Exceeds ANSI A118.4TE, A118.11 and A118.15TE specifications
  • Provides 50 lbs. (22.68 kg) of coverage in a 30 lb. bag (13.6 kg).
  • Recommended for use with glass tile.
  • Contains 5% pre-consumer recycled content (4% white) and zero VOC.
  • Available in 30 lb. bags (13.6 kg).

Conforms with LEED v4 low emitting interiors.
Compliant with (CDPH) Standard Method v1.2 VOC Emissions.

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IsoLight™ - Lightweight 1/8" Crack Isolation Mortar
Color Color Name Download
359 Standard White

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358 Standard Gray

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