Boss 385 Clear Silicone 10 oz.

BOSS® 385 Tub & Tile Plumbers 100% RTV Silicone is a one-part, fungicidal, silicone rubber
sealant designed to seal nonporous surfaces around ceramic tile, showers, tubs, sinks and
plumbing fixtures where conditions of high humidity and temperature extremes exist.
• Resists mildew even in prolonged hot
and humid environments
• Resists staining, spotting and color
change
• Remains flexible – will not shrink, crack,
crumble or dry out
• Stays bright and clean
• Is ready-to-use as supplied
• Resists moisture, hot cooking oils and
free steam
• Adheres to many nonporous surfaces
such as porcelain, painted areas and
glass without the use of a primer
BOSS® 385 Tub & Tile Plumbers 100% RTV Silicone must always be applied to sound,
clean, dry, frost-free surfaces.
Tooling is recommended and if possible, should be completed in one continuous stroke.
Tool joints within 10 minutes of application. Remove masking tape before a surface skin has
formed.
Cleaning the joint surface on both new and old jobs
Bonding surfaces on both new and remedial jobs must be clean, dry and free of dirt, dust
and soap film.
Use masking tape where bead lines of exact shapes are required.
Use masking tape before applying sealant and remove immediately after a bead is
completed and before a skin forms (7 to 15 minutes).
Applying the sealant
BOSS® 385 Tub & Tile Plumbers 100% RTV Silicone can be applied directly from the
caulking cartridge with either an air operated or hand operated cartridge gun. Do not break
the cartridge seal until just before using.
After applying the sealant and after a skin has formed, do not disturb the joint for 48 hours.
A previously opened cartridge may be reused by removing the cured plug of sealant from
the tip