Permatex Sensor-safe Grey Rtv Silicone Gasket Maker



Permatex Sensor-safe Grey Rtv Silicone Gasket Maker

Sensor-Safe Grey RTV Silicone Gasket Maker 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 to provide increased oil resistance and complies
with extended warranty requirements.
  • Improved oil resistance
  • Sensor-safe, non-corrosive
  • Good adhesion and flexibility
  • Replaces most cut gaskets
  • Can be used as a gasket maker or dressing
  • Non-flammable, Non-toxic
  • Low odor
  • Pump housings
  • Machine tools
  • Compressors
  • Gearboxes
  • Valve covers
  • Oil pans
  • Transmission pans

For assembly as form-in-place gasket

  1. Remove all previous material from mating surfaces.
    Gasket Remover is recommended for most
    materials, not for plastics or painted surfaces.
  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
  4. Remove cap, puncture tube or cartridge seal and attach
    extension nozzle.
  5. Apply a continuous and even 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 least
    one quarter to one half turn.
  9. For best results, allow to cure overnight.

For assembly as gasket dressing

  1. Repeat steps 1 through 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
Storage of Unused Product

  1. Create a “Silicone Plug” by allowing excess material to
    extend beyond the extension nozzle to cure, sealing and
    protecting the remaining product from moisture. For
    reuse, simply remove the cured product from the tip.

For Cleanup

  1. Remove uncured product from parts and hand-tools with
    Fast Orange®
    Wipes or Fast Orange®
    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.


Sensor-Safe Grey RTV Silicone Gasket Maker
cures on exposure to moisture in the air. The product dries
tack free in two hours and fully cures in 24 hours. Cure times
will vary with temperature, humidity and gap.
Chemical / Solvent Resistance

The product retains effective properties in contact with
automotive fluids, such as motor oil, transmission fluids,
alcohol and antifreeze solutions. Note: Not recommended for
parts in contact with gasoline.

This product is not recommended for use in pure oxygen
and/or oxygen rich systems and should not be selected as
a sealant for chlorine or other strong oxidizing materials.
For safe handling information on this product, consult the
Material Safety Data Sheet, (MSDS).

Products shall be ideally stored in a cool, dry location in
unopened containers at a temperature between 8° and 28°C
(46° and 82°F) unless otherwise labeled. Optimal storage is at
the lower half of this temperature range. To prevent
contamination of unused product, do not return any material to
its original container.

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