HH-66 Thinner

  • Formulated specifically for use with HH-66 Vinyl Cement
  • Designed for thinning, spraying, prep and cleanup of your project and tools



This product is eligible for special wholesale pricing. Contact us at 978-897-8000 or [email protected] to learn more!

Rule of thumb is 1oz per square foot. For more details click here for our product calculator.

Our HH-66 Thinner is designed primarily for use with HH-66 Vinyl Cement.

This solvent based thinner reactivates dried HH-66 or removes unwanted HH-66 from surfaces.

You can also use our thinners to clean brushes, rollers, spray guns and other types of applicators. Since the thinners are flammable, they should be used in a well-ventilated area.  Handle empty containers with care, as any residual solvent is flammable.

General Thinner Application Instructions

Use a brush or roller to apply a light layer of the appropriate RH Adhesives Thinner directly to the application. Bond the pieces together as per the adhesive directions.

Add the appropriate thinner until the original consistency is reached. Mix until evenly dispersed.

Follow the manufacturers’ recommended cleaning procedure. It is recommended to clean the applicator immediately after use. Our thinners are flammable and should be used in a well-ventilated area. Handle empty containers with care as residual solvent is flammable.

Add the appropriate thinner as needed. Mix until evenly dispersed. Over dilution can cause loss of bond strength. A second application may be required to achieve the appropriate coverage for a good bond.

Usefulness depends on the sprayer and application. It is not recommended to use more than 20% thinner for spraying. With diluted adhesive, a second application may be required to achieve the appropriate coverage for a good bond.

Technical Data

  • Base: Solvent Blend
  • Color: Clear
  • Viscosity: 1 cP (water-like) at room temperature
  • Application: Mix into cement, brush, roller, spray gun
  • Vapor Density: Heavier than air
  • Relative Density: Lower than water
  • Temperature Limit: 95° F
  • Flash Point: 13° F
  • Shelf Life: 18 months from date of manufacture
  • Coverage: Varies

NOTE: May adversely affect some plastics and other materials. Test first

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