Arcrefin BC 350 Translucent Midcoat Basecoat
A translucent, pearl and candy loaded midcoat for three-coat colours, applied between a defined ground coat and the clearcoat. The final colour depends on the number of midcoats over the ground, so each job is set up on a stepped spray-out card.
Grade Arcrefin BC 350 | Range Automotive Refinish | Technology Translucent basecoat midcoat loaded with pearl and candy colourants
Technical Data Sheet
Arcrefin BC 350
Issue 2026.09
1. Product description
A translucent, pearl and candy loaded midcoat for three-coat colours, sprayed between a defined ground coat and the clearcoat. Colour is a function of coat count over that ground rather than of the formula alone, so the material is supplied with a coat-count reference and is always set up on a stepped spray-out card before the panel is sprayed. It is the grade used where a white or red three-coat pearl cannot be reproduced by a single basecoat layer.
2. Features
- For three-coat white and red pearls that a single basecoat layer cannot reproduce
- Supplied with a coat-count reference
- Coat count selected from a stepped card at two, three and four coats
- Blended outward on each successive coat
- Multi-angle colour assessed across the full geometry set
3. Recommended uses
Three-coat pearl and candy colours in refinish, in particular white and red pearls, over an Arcrefin BC 210 ground coat on Arcrefin PS 220 sealer in the matching shade.
Substrates. The ground coat specified by the three-coat formula, normally an Arcrefin BC 210 solid or metallic ground over Arcrefin PS 220 sealer in the matching shade.
4. Typical properties
| Property | Typical value | Method |
|---|---|---|
| Technology | Translucent basecoat midcoat loaded with pearl and candy colourants | Formulation |
| Appearance | Translucent, pearl and candy loaded; colour develops with coat count over the ground | Visual |
| Ground | The ground coat specified by the three-coat formula, normally Arcrefin BC 210 over Arcrefin PS 220 | Customer or supplier protocol |
| Coat count | Set on a stepped card at two, three and four coats; the matching count is used on the panel | Customer or supplier protocol |
| Finish before clearing | Even matt after full flash | Visual |
| Colour difference against the target panel at the face angle | Delta E*ab below 1.0 for an accepted blended repair | ASTM D2244 |
| Multi-angle colour of interference and pearl shades | Agreed tolerance held across the full geometry set, including the near-specular and negative angles | ASTM E2539 |
Typical values, not a specification. Values for each batch are given on its Certificate of Analysis.
5. Application
| Parameter | Guidance |
|---|---|
| Colour set-up | Spray a stepped card at two, three and four coats over the same ground, clear it, and select the count that matches the vehicle in daylight |
| Method | Spray gun, 1.2 to 1.3 mm fluid tip, with gun distance, pressure and overlap identical to the card |
| Coats | Exactly the number selected from the card, with full flash between coats |
| Blending | Blend the midcoat outward on each successive coat |
| Next coat | Flash to matt, then clear with Arcrefin CC 220 or CC 450 |
Process. Spray a stepped card at two, three and four coats over the same ground and select the count that matches the vehicle in daylight. Apply that exact number of coats at 1.2 to 1.3 mm tip with full flash between each, keeping gun distance, pressure and overlap identical to the card. Blend the midcoat outward on each successive coat, flash to matt and clear.
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.