Description

U-POL Plastic Primer 1L Tin Clear is a fast-drying, ready-to-use adhesion promoter designed to improve the bonding of paints, adhesives and sealants to most plastic surfaces. Its transparent formula is particularly useful for difficult-to-coat plastics, including thermoplastic olefins (TPO), providing a suitable base before applying colour.

What U-Pol Plastic Primer is for

This primer is designed to prepare plastic automotive components before painting, including bumpers, mirror housings, trim and other compatible plastic parts. It helps subsequent coatings adhere more effectively to the surface and is suitable for professional refinishing work where a thin, clear adhesion-promoting layer is required.

For effective cleaning before priming, use a suitable plastic surface cleaner such as U-POL Plast X 1, which helps remove contaminants before applying the adhesion promoter. For a ready-to-use spray option for smaller plastic parts, explore the U-POL Plastic Primer product range.

How to apply

1. Clean the plastic thoroughly with a suitable plastic cleaner and allow it to dry.
2. Abrade the surface using P240–P320 abrasive.
3. Degrease again and remove all dust and contaminants.
4. Stir or shake the product thoroughly before use.
5. Apply using an HVLP gravity spray gun with a 1.0–1.2mm fluid tip.
6. Apply 1–2 light, even coats, allowing 5–10 minutes of flash-off between coats.
7. Allow approximately 20 minutes at 20°C before overcoating.
8. Apply a suitable primer filler or surfacer directly over the adhesion promoter within 1 hour.

U-Pol Plastic Primer: key facts

• 1K Plastic Primer Adhesion promoter, 1L tin, clear
• Application method: HVLP gravity spray gun
• Recommended fluid tip: 1.0–1.2mm
• Number of coats: 1–2 light, even coats
• Flash-off between coats: 5–10 minutes
• Overcoating time: approximately 20 minutes at 20°C
• Apply a suitable primer filler or surfacer within 1 hour
• Recommended storage temperature: 5–25°C
• Transparent, fast-drying adhesion promoter
• Improves adhesion of paints, adhesives and sealants to most plastics
• Suitable for difficult-to-coat plastics, including TPO

Which colour / size to choose

Choose U-POL Plastic Primer 1L Tin Clear when preparing multiple plastic components or larger automotive parts before painting. The 1L tin is suitable for spray-gun application, while the clear formula promotes adhesion without adding a coloured primer layer.

FAQ

What is U-POL Plastic Primer used for?
It improves the adhesion of paints, adhesives and sealants to most plastic surfaces.
Is this product ready to use?
Yes, it is a 1K primer that does not require a separate hardener.
Can it be used on TPO plastic?
Yes, it is designed to promote adhesion on difficult-to-coat plastics, including TPO.
What colour does it dry?
It is a clear adhesion promoter with a transparent amber appearance in liquid form.
How should it be applied?
Use an HVLP gravity spray gun with a 1.0–1.2mm fluid tip.
How long should I wait before overcoating?
Allow approximately 20 minutes at 20°C, then apply a suitable primer filler or surfacer within 1 hour of application.
Can it fill scratches or surface imperfections?
No, it is an adhesion promoter, not a high-build or filling primer.