Multiple Coats of Liquid Rubber EPDM

For roofs and other non-immersion applications, one coat of 20 mils dft of Liquid Rubber EPDM is adequate, however should for some reason, you require more than 20 mils thickness, you may apply multiple coats of 20 mils dft. to build up thicker membrane and for extra protection.

For multiple coats, apply the first coat as described above and allow to partially cure after approximately 12 to 18 hours in 70 deg. F. Apply a second coat (within this 12 to 18 hour window), again, using a spreading rate of 40 sq.ft. a gallon, as applied in the first coat. On curing this will form a thicker, stronger, and more homogeneous, bond between the first and second layers.

Repeat this process for subsequent multiple coats.

You will also be able to coat over cured existing Liquid Rubber EPDM, years after the first application. Clean and dry the surface as described above under Surface Preparations. No primers are necessary when re coating over Liquid Rubber EPDM.

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