MG Chemicals SS4120-1P Transparent Silicone Primer, 1P Bottle
MG Chemicals SS4120-1P Transparent Silicone Primer, 1P Bottle
PLEASE NOTE: RTV products are not stocked. Please call for updated pricing and lead times.
The MG Chemicals SS4120-1P is a one-component transparent silicone primer formulated for use with Momentive Performance Materials' addition-cure RTV silicone rubber adhesive sealants. It promotes adhesion to difficult-to-bond substrates where primerless adhesion is not sufficient, and preserves the clarity of colorless silicone products. No mixing required — supplied ready-to-use as a pourable solvent solution.
Sold individually (1P bottle).
Specifications
| SKU | SS4120-1P |
|---|---|
| Type | Addition-cure RTV silicone primer |
| Components | One-component, no mixing required |
| Appearance | Transparent (preserves clarity of colorless products) |
| Form | Pourable solvent solution, ready-to-use |
| Cure Conditions | Room temperature and ambient humidity |
| Compatible Systems | Momentive Performance Materials addition-cure RTVs |
| Primary Use | Promotes adhesion to difficult-to-bond non-silicone substrates |
Frequently Asked Questions
When is a primer required with RTV silicones?
For most two-component Momentive RTV products, a primer is required when an adhesive bond is needed between the silicone rubber and a non-silicone surface. One-component products often allow primerless adhesion to many substrates, but primers are used for difficult-to-bond materials.
Why use a transparent primer?
The SS4120-1P is specifically formulated to be transparent, making it the right choice when a clear medium is required — it won't affect the appearance of colorless silicone products.
How is it applied?
It is supplied as a ready-to-use pourable solvent solution — no mixing needed. Apply to the substrate and allow to dry at room temperature and ambient humidity before applying the RTV silicone.
Is this product stocked?
No — RTV products including the SS4120-1P are not stocked. Please call us for current pricing and lead times before ordering.
