Internal reference:
40-994.DO.G800
HS code:
39100000
Technical Data
Typical values, not a specification. The technical data sheet (TDS) is binding.
Physical and thermal
- Flash point
- 20 °C
Storage
- Shelf life in original packaging
- 24 months
- Storage Temperature
- 5 to 30 °C
Product Information
- Brand
- Bluesil
- Manufacturer
- Elkem Silicones
- Curing type
- Non-reactive
- Container
- 1 kg
- Number of components
- 1K (one-component)
- Consistency
- Flowable
- Mixing Ratio
- One-component
Further Properties
- UV resistance
- No
Physical Properties
- Cured Color
- Transparent
- Self-leveling
- Yes
Electrical Properties
- Electrical Insulation
- No
Product Approvals
- Food contact
- No
- Medical grade
- No
Product Description
Bluesil Primer 131 is a universal adhesion promoter primer for bonding silicone elastomers to stainless steel, aluminum, polymethyl methacrylate (PMMA), and many metals.
Bluesil adhesion promoter primers — prepare critical substrates (metal, plastic, glass, polyester) for bonding with silicone elastomers, providing significantly higher shear strength than untreated substrate. Primer 131 is tailored to specific applications — the most important properties and areas of use are listed below.
Bluesil Primer 131 is the proven universal adhesion promoter for the Bluesil RTV and CAF series — especially on stainless steel, aluminum, and PMMA. First prepare the substrate clean and degreased, then apply the primer and allow it to dry for at least 30 minutes before silicone bonding.
What sets Primer 131 apart
What is Primer 131 used for?
Processing
Recommended accessories
Primer 131 in comparison
Direct comparison with related primer products in our range. “— " = not specified in the data sheet.
Primer 131 Current Product |
Primer PM 820 → | Primer PM 821 → | Primer PM 811 A → | |
|---|---|---|---|---|
| Primer type | 1K Primer | 1K primer (special) | 1K special primer | 2K Primer Component A |
| Solvent | Solvent-based | Solvent-based | Solvent-based | Solvent-based |
| Solid content | see TDS | see TDS | see TDS | see TDS |
| Drying time | 30 min @ 23 °C | 30 min @ 23 °C | see TDS | see TDS |
| Substrates | Stainless steel, aluminum, PMMA | PA, PES, ABS, PP, Composites | Special substrates | Special substrates |
| Main application | Universal metal/plastic | Polar plastics + composites | Bluesil Special Application | 2K primer activator |
Frequently Asked Questions about Primer 131
Practical application and design questions — answered by SILITECH.
Bluesil Primer 131: Universal adhesion promoter primer for bonding silicone elastomers to stainless steel, aluminum, polymethyl methacrylate (PMMA), and many metals. Main applications: stainless steel bonding, aluminum bonding, PMMA bonding.
First prepare the substrate clean, grease-free and dry (degrease with acetone, sand if necessary). Apply the primer thinly and evenly with a brush or by dipping. Allow to dry for at least 30 minutes at 23 °C, then apply the silicone (RTV/CAF/Bluesil) to the primed area. For polyaddition silicones, the primer must not contain any inhibitors.
Store in the unopened original container in a dry, cool place — typically standard between +5 and +30 °C, exact values see TDS. Consult the Safety Data Sheet (SDS) before use. Observe the expiration date on the packaging — Elkem guarantees the sales specifications only up to the stated date.
In the comparison table above, you will find related products with similar functions or related specifications. If you are unsure about the optimal choice, we will be happy to advise you — contact SILITECH with your application (desired property, substrate, processing workflow).


Silicones, silicone oils, sprays
Casting and potting resins