TABLE - Typical Mix Proportions for Perlite Tile Mortars

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ACCEPTED MIX PROPORTIONS FOR PERLITE TILE MORTARS

Several different mix proportions are used by tile setters but the mix most commonly used is presented in the following table. All materials should be thoroughly mixed dry and then sufficient water should be added to obtain the desired consistancy. The use of excessive water should be avoided.

Typical Lightweight Perlite Tile Mortar Mix
Materials	Parts by Volume
Portland Cement Perlite Hydrated Lime Reinforcing Fibers	1 4 1/2 0.7 lbs

(^*Fibers may be used for added strength.)

This mix can be used for both the scratch coat, leveling coats and tile setting bed. 48 hours should be allowed for the scratch coat to set up. On a scratched and plumbed wall, a softer consistency mortar is required than if tile is to be floated directly on a wire mesh or hardness cloth.

Information given herein is from sources considered reliable, but no guarantee of accuracy can be made or liability assumed. Your supplier may be able to provide you with more precise data. Certain compositions or processes involving perlite may be the subject of patents.
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