OSHA Silica Dust Regulations and Information

OSHA Silca Dust

An industrial hygiene consultant has concluded that no respirable crystalline silica dust
was measured above the OSHA detection limits in any of the products tested.
In fact, the products measured well below the maximum exposure limits.

Read the 2020 Report >

Read the 2017 Report >

Our top-selling bagged products fully comply with OSHA’s new workplace standards. Products representative of the Tile and Stone Installation System, Masonry Veneer Installation System and the Specialty Products Division were tested. Key products included 257 TITANIUM™, TRI-LITE™, MVIS™ Premium Pointing Mortar and NXT®.

Tile & Stone Installation

Adhesives & Mortars

Polymer-Modified Mortar 252 Silver
Polymer-Modified Mortar 253 Gold
Polymer-Modified Mortar 254 Platinum
Polymer-Modified Mortar 257 TITANIUM™
Large & Heavy Tile Mortar 4-XLT
Large & Heavy Tile Mortar LHT™ Plus
Large & Heavy Tile Mortar LHT™
Large & Heavy Tile Mortar MULTIMAX™ Lite
Large & Heavy Tile Mortar TRI-LITE™
Large & Heavy Tile Mortar TRI-LITE™ Rapid


Cementitious Grouts PERMACOLOR® Grout
Cementitious Grouts PERMACOLOR® Select
Epoxy Grouts SPECTRALOCK® Part C Powder

Surface Preparation


Self-Leveling Underlayments NXT® Level Flow
Self-Leveling Underlayments NXT® Level Plus
Self-Leveling Underlayments NXT® Level