Chemical, Sealants & Fluids

RTV133 – Sealant




RTV133 black, one-component, ready-to-use, silicone rubber adhesive
sealant, is an excellent candidate to consider for use in applications in the
electronics, aerospace, appliance, transportation and other industries where
resistance to burning of the finished product is a significant design
consideration. On exposure to moisture in the air at room temperature, this
adhesive sealant cures to a tough, durable, resilient silicone rubber. It
utilizes an atmospheric moisture cure system, which releases an alcohol vapour
from the sealant surface during cure.


RTV133 sealant offers generally low odour cure with virtually no
unpleasant smell or pungent cure by-products. It is, however, somewhat slower
curing both in tack-free time and cure-through time than many atmospheric
moisture cure silicone adhesive sealants that give off acetic acid vapours as a
cure by-product.


Because RTV133 sealant has a paste-like consistency and will flow only
with external pressure, it may be considered for use on horizontal, vertical
and overhead surfaces in thicknesses to 6mm (¼ in.). It has sufficient uncured
body to typically adhere to small objects while cure is taking place. For
applications requiring sealant thickness greater than 6mm (¼ in.), Momentive
Performance Materials one-component, addition cure or two-component silicone
rubber compounds with similar properties are available for consideration.


Typical applications include coatings for electronic and integrated
circuits and semi-conductors and connections on electronic parts assemblies.
Because of the typically low odour of its cure by-product, RTV133 sealant may
be considered for mechanical applications in confined work areas where the odour
of other moisture vapour cure sealants might be objectionable.



Key Features and Typical Benefits

One-component product

Thixotropic paste consistency

Low flammability-has a UL rating of V-0 or V-1
using UL-94 test

Capability to cure at room temperature and
ambient humidity conditions

Self-adhesion properties

Resistance to high temperatures

Low temperature flexibility

Excellent weatherability and ozone and chemical

Excellent electrical insulation properties

Non-halogen flame retardants


    Product Datasheet


    Additional information

    Weight0.00000000 kg


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