Description

PRODUCT DESCRIPTION S.I.N.: 834-300
Permatex Ultra Blue RTV Silicone Gasket is a single
component, room temperature vulcanizing gasketing
compound designed to provide reliable “formed-in-place”
gaskets for mechanical assemblies. This material cures on
exposure to moisture in the air to form a tough, flexible,
silicone rubber gasket. The product resists aging, weathering
and thermal cycling without hardening, shrinking or cracking.
Designed for superior bonding properties to oil contaminated
metals as compared to other formed-in-place gaskets, and
maintains outstanding oil resistance. NSF White Book
registered.
PRODUCT BENEFITS
Sensor safe, non-corrosive
Superior adhesion and flexibility
Improved oil resistance
Replaces most cut gaskets
Low odor
Can be used as a gasket maker or dressing
Non-flammable, Non-toxic
TYPICAL APPLICATIONS
Pump housings
Machine tools
Compressors
Gearboxes
Transmission pans
Valve covers
Oil pans
DIRECTIONS FOR USE
For assembly as form-in-place gasket
1. Remove all previous material from mating surfaces.
Permatex Gasket Remover is recommended for most
materials.
2. For best results, clean and dry all surfaces with a
residue-free solvent, such as Permatex Brake and
Parts Cleaner.
3. Cut nozzle to desired bead size, 1/16“ to 1/4“ in
diameter. A 1/8” bead is usually sufficient for most
applications.
4. Remove cap, puncture tube or cartridge seal and attach
extension nozzle.
5. Apply a continuous 1/16 inch to 1/8 inch bead of silicone
to one surface, first tracing the internal areas of the
gasket configuration, then all surrounding bolt holes.

6. Assemble parts immediately while silicone is still wet.
7. Finger tighten flange only until material begins to seep
out the sides of the flange.
8. Allow to set for at least two hours and re-torque at lease
one quarter to one half turn.
9. For best results, allow to cure overnight.
For assembly as gasket dressing
1. Repeat steps 1 thru 4 as in previous section.
2. Apply a thin film of silicone to one surface to be sealed.
3. Place the pre-cut gasket onto silicone film.
4. Apply a second thin film to pre-cut gasket surface.
5. Remove any excess and assemble parts immediately.
Note: Product not recommended for use as a cylinder
head gasket or head gasket sealant.
Instructions for PowerBead
1. Clean and dry all flange surfaces to be sealed.
2. Remove black cap from top of extension nozzle.
3. Turn nozzle extension one complete turn (360)
counterclockwise.
4. Depress finger trigger and apply a continuous 1/16 inch
to 1/8 inch PowerBead to one surface.
5. Assemble parts immediately while silicone is still wet.
6. Finger tighten flange only until material begins to seep
out the sides of the flange.
7. Allow to set for at least two hours and re-torque at least
one quarter to one half turn.
8. For best results, allow to cure overnight.
9. To close, turn extension nozzle clockwise until tight
(about one full turn). Wipe off excess material from
nozzle and replace black cap.
For Cleanup
1. Remove uncured product from parts and hand-tools with
Permatex® Fast Orange® Wipes or Fast Orange® Hand
Cleaners. If skinned over, break film with a dry cloth to
remove as much as possible. Remove the remaining
material with Permatex® Gasket Remover.
2. Clean hands with a dry cloth or Permatex Fast Orange
hand cleaner.