Arcrefin PR 110 Plastic Adhesion Promoter
A single-component, very low build adhesion promoter applied as a light mist coat to untreated polyolefin mouldings, so that primer, sealer or basecoat can key to a low surface energy plastic. It adds negligible film build and no filling, and it is not a primer.
Grade Arcrefin PR 110 | Range Automotive Refinish | Technology Single-component, air-drying adhesion promoter for polyolefin plastics
Technical Data Sheet
Arcrefin PR 110
Issue 2026.09
1. Product description
A single-component, very low build promoter sprayed as a light mist coat onto untreated polyolefin mouldings before any primer or basecoat. It is not a primer: it adds negligible film build and no filling, and its only job is to give a surface the following coats can key into, on a plastic whose low surface energy ordinary refinish materials will not hold on to. The overcoat window is short, so the panel is built up in the same booth session rather than left overnight.
2. Features
- Single component, used without hardener
- Very low build: 3 to 8 µm dry in one light coat
- Air-dries; no bake before overcoating
- Short overcoat window, so the part is built up in the same booth session
- Needed only on untreated polyolefins; polar and previously coated plastics are primed directly
3. Recommended uses
Untreated polypropylene, TPO and EPDM-modified polypropylene bumper covers, trim mouldings and other low surface energy polyolefin parts in bodyshop repair. It is not required on polyamide, PC/ABS or PPO blends, or on plastic parts that already carry a sound coating.
Substrates. Untreated polypropylene, TPO and EPDM-modified polypropylene bumper and trim mouldings, and other low surface energy polyolefin parts. Polar plastics such as polyamide, PC/ABS and PPO blends, and previously coated plastic parts, are cleaned, abraded and primed directly and do not need the promoter.
4. Typical properties
| Property | Typical value | Method |
|---|---|---|
| Technology | Single-component, air-drying adhesion promoter for polyolefin plastics | Formulation |
| Appearance | Low-viscosity liquid, applied as a light mist coat | Visual |
| Components | Single component, used without hardener | Customer or supplier protocol |
| Dry film thickness, one coat | 3 to 8 µm | ISO 2808 |
| Film build and filling | Negligible build and no filling; the product is not a primer | Customer or supplier protocol |
| Flash-off before overcoating at 20 °C | 10 to 15 min | Customer or supplier protocol |
| Drying | Air-dry only; no bake required | Customer or supplier protocol |
| Overcoat window | Short; overcoat in the same booth session, inside the window stated on the label | Customer or supplier protocol |
| Cross-cut adhesion of the overcoated system on prepared polyolefin | Classification 0 to 1 (ASTM 4B to 5B where total dry film is 125 µm or less) | ISO 2409, cut spacing for soft substrate and total film thickness; ASTM D3359 Method B |
Typical values, not a specification. Values for each batch are given on its Certificate of Analysis.
5. Application
| Parameter | Guidance |
|---|---|
| Surface preparation | Degrease, abrade, degrease again and allow the part to dry fully |
| Method | Conventional or HVLP spray gun, 1.3 to 1.4 mm fluid tip, one light mist coat |
| Applied film | 3 to 8 µm dry in one coat |
| Flash-off | 10 to 15 min at 20 °C; air-dry only, no bake |
| Next coat | Arcrefin PS 220 sealer or Arcrefin PS 450 surfacer, with flexibilising additive on flexible parts, inside the overcoat window stated on the label; basecoat follows over the sealer or surfacer |
| Flexible parts | Add Arcrefin AN 340 flexibilising additive to the following primer, sealer and clearcoat at the rate on the data sheet |
Process. Degrease, abrade, degrease again and dry. Apply one light coat by conventional or HVLP gun with a 1.3 to 1.4 mm tip at 3 to 8 µm dry. Flash 10 to 15 min at 20 °C and overcoat with primer, sealer or basecoat inside the stated window; air-dry only, no bake required.
6. Storage and handling
Store in the original, tightly closed container in a cool, dry place, out of direct sunlight and away from heat. Shelf life is stated on the label and Certificate of Analysis. Handle and use the product in line with its Safety Data Sheet.
7. Safety and regulatory information
Read the Safety Data Sheet before use. Safety Data Sheets and regulatory declarations are issued by our technical centre against the product and batch supplied, so they are sent on request rather than published. Request a Safety Data Sheet or declaration.
This Technical Data Sheet is published for on-screen reference. The information is given in good faith from laboratory and application experience and describes typical values; it is not a specification and does not replace a trial on your own substrate and line. Arctic Materials may revise this sheet without notice. Issue 2026.09.
Technical Data Sheets on this site are for on-screen viewing. For a controlled copy, write to tech@arcticmaterials.com.
Other grades in this range
Need a Safety Data Sheet, a regulatory declaration or a grade specified to your line? Contact our technical centre.