Silicones, silicone oils, sprays
Casting and potting resins)
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
- 12 months
- Storage Temperature
- 5 to 30 °C
Product Information
- Brand
- Bluesil
- Manufacturer
- Elkem Silicones
- Mixing Ratio
- 10 :1
- Curing type
- One-component (moisture curing)
- Container
- 100 ml, 750 g
- 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
- Density (g/cm³)
- 0.77
- Uncrosslinked viscosity (mPa·s)
- 1
Electrical Properties
- Electrical Insulation
- No
Curing values
- Pot life (min)
- 3
Product Approvals
- Food contact
- No
- Medical grade
- No
Product Description
Bluesil Primer PM 820 is a high-performance adhesion promoter primer for bonding silicone to polar plastics (polyamide, polyester, ABS, polypropylene) and composite materials.
Bluesil adhesion promoter primers prepare critical substrates (metal, plastic, glass, polyester) for bonding with silicone elastomers, resulting in significantly higher shear strength than untreated substrates. Primer PM 820 is tailored to specific applications—the most important properties and areas of use are listed below.
Bluesil Primer PM 820 is a specialized adhesion promoter for polar engineering plastics such as polyamide, polyester, ABS, and polypropylene—substrates that are otherwise difficult to bond with silicone. It is proven effective for bonding composite components with 30% glass fiber content.
What makes Primer PM 820 stand out
What is Primer PM 820 used for?
Processing
Recommended accessories
Primer PM 820 in comparison
Direct comparison with related primer products in our range. “— " = not specified in the data sheet.
Primer PM 820 Current Product |
Primer 131 → | Primer PM 821 → | Primer PM 811 A → | |
|---|---|---|---|---|
| Primer type | 1K primer (special) | 1K Primer | 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 | PA, PES, ABS, PP, Composites | Stainless steel, aluminum, PMMA | Special substrates | Special substrates |
| Main application | Polar plastics + composites | Universal metal/plastic | Bluesil Special Application | 2K primer activator |
Frequently asked questions about Primer PM 820
Practical application and design questions — answered by SILITECH.
Bluesil Primer PM 820: High-performance adhesion promoter primer for bonding silicone to polar plastics (polyamide, polyester, ABS, polypropylene) and composite materials. Main applications: polyamide bonding, polyester components, ABS 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).