Installation Guide

There are many ﬁber cement siding manufacturers, each providing

their individual recommendations and guidelines for siding

installation. Check with the ﬁber cement siding manufacturer’s

recommendations before using Titebond WeatherMaster sealant.

User Guidelines:

• May be painted with a water-based paint approximately one hour after

application. For other types of paint, a compatibility test is required.

• Ensure sealant bead has skinned over before painting.

• Do not use WeatherMaster sealant to ﬁll in nail holes. Use color coated nails

if recommended by the ﬁber cement board manufacturer.

• Always apply sealant in bead form. DO NOT smear or wipe sealant to a thin

consistency outside of joint.

• Minimum joint size of 1/4”. A bead of this diameter will result in

approximately 31 linear feet.

• For best results, all surfaces must be clean down to the original substrate and

free of any material or contaminant that may prevent adequate adhesion.

• Clean tools and excess material with isopropyl alcohol before the sealant

dries. Scrape and remove dried excess sealant.

• Air, sealant, and surface temperature should be above 0˚F.

• Sealant is not designed for continuous submersion.

• Be sure to consult ﬁber cement board manufacturer’s recommendations for

butt joints. While WeatherMaster can be used to seal butt joints, masking tape

MUST be used on both sides of joint before application. If recommended by

the ﬁber cement board manufacturer use a slip sheet behind butt joints.

• It is the sole responsibility of the user to thoroughly test any proposed use

with all substrates to determine project suitability.

WEATHERMASTER SEALANT

Fiber Cement Board Installation Guide

Franklin International

2020 Bruck Street, Columbus, Ohio 43207

CUSTOMER SERVICE 1-800-669-4583 • TECH SERVICE 1-800-347-GLUE