SPI 2K Sealer
A grey two-component sealer from the Southern Polyurethanes automotive refinishing range.

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A grey two-component sealer from the Southern Polyurethanes automotive refinishing range.
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| Manufacturer | Southern Polyurethanes |
|---|---|
| Product name | SPI 2K GREY SEALER - QT |
| Inventory description | SPI 2K GREY SEALER - QT |
| Unit / package | Quart |
| Product number | 6401-4 |
| Manufacturer product number | 6401-4 |
Full product details, applications & manufacturer specifications
A grey two-component sealer from the Southern Polyurethanes automotive refinishing range.
About this product range
SPI 2K Urethane Sealer is a 2.1 VOC undercoat for prepared refinishing surfaces. Mix 4:1:1 primer, activator and suitable urethane reducer; the manual permits up to 4:1:2 for spraying needs. It may also be used as a 2K primer at 4:1 without reducer. Do not apply it over bare metal. Apply one wet sealer coat and allow 10 minutes to 2 hours before colour for best results; after 4 hours it must be sanded. Sanding imperfections may be possible after 15–30 minutes, depending on temperature and reducer.
Selected product & format
- Manufacturer product name
- SPI 2K GREY SEALER – QT
- Manufacturer product number
- 6401-4
- Selling unit
- Quart
- Manufacturer
- Southern Polyurethanes
- Product name
- SPI 2K GREY SEALER - QT
- Inventory description
- SPI 2K GREY SEALER - QT
- Unit / package
- Quart
- Product number
- 6401-4
- Manufacturer product number
- 6401-4
Complete your project.
Companion products for the selected product and system.

3M™ Performance Green Masking Tape 233+
Mask adjacent vehicle surfaces before refinishing.
Use as a removable masking accessory on a suitable clean, dry surface. Check adhesion first, follow the coating’s masking and drying instructions, and stay within the tape temperature and removal limits.

3M™ Scotchblok™ Masking Paper
Protect adjacent panels from paint overspray.
For automotive paint masking with suitable tape. Keep the paper outside the coated area and within its stated bake-temperature limit; follow the coating technical sheet.
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