Sherwin-Williams ULTRA 7000® S66 is a unique 2K transparent basecoat and blending solution designed for use within the ULTRA 7000® refinish system. It functions both as a transparent basecoat and as a blender to support smooth, controlled color transitions when blending basecoat repairs.
S66 provides a uniform ground coat that improves blend consistency and metallic orientation. When used as a blender, it may be integrated into reduced ULTRA 7000® basecoat color to lower pigment load while maintaining film body. This product supports fast workflow with a wet-on-wet recoat window as short as 5–15 minutes.
Key Features
2K transparent basecoat and blender in one product
Provides a uniform ground coat for ULTRA 7000® basecoat blending
Supports smooth metallic orientation and color transitions
Wet-on-wet recoat window of approximately 5–15 minutes
Designed for professional refinishing environments
Primary Uses
Blending ULTRA 7000® refinish basecoat colors
Use as a transparent basecoat where required
Reducing pigment load during blend repairs while maintaining film build
Mixing Information
Mixing ratio: 1:1 (S66 : approved RHF stabilizer)
Must be mixed with RHF stabilizer prior to application
Do not apply unmixed S66
Compatibility
ULTRA 7000® refinish basecoat system
ULTRA 7000® 2K basecoat applications
Approved Sherwin-Williams automotive undercoats and adhesion promoters
Application Notes
Apply following proper surface preparation and cleaning procedures
Allow each coat to flash until a uniform dull appearance is achieved
Clearcoat may be applied after appropriate flash time
Product Details
Color: Transparent
Form: Liquid
Container size: 1 Gallon
Container type: Can
VOC content: 596 g/L (as packaged)
Brand: Sherwin-Williams®
Part No.: S66-1
UPC: 764423166216
Notes
Professional-use product intended for trained applicators
Refer to ULTRA 7000® system technical documentation for full procedures
Always follow applicable safety, PPE, and regulatory guidelines
