CHEM-THANE P80 is a water clear, 2-component, 80% solids modified aliphatic, high gloss polyaspartic coating. It combines the best attributes of high grade epoxy and urethane coatings in to one product.  CHEM-THANE P80 offers the highest UV resistance available, remains flexible over time and has very good abrasion and chemical resistance.  CHEM-THANE P80 is compliant with all VOC and HAPS regulations throughout the US and meets all USDA/FDA guidelines for use in federally inspected facilities.  

Uses & Typical Coverage

PRIMER, BODY & FINISH COAT:  CHEM-THANE P80 is an excellent non-yellowing, cost effective, coating for any ROCK-TRED polymer floor or wall system. This coating is specially formulated to provide the characteristics of more expensive polyaspartic coatings at a lower per mil cost.  Typical coverage per coat is 5 - 12 mils WFT.   


  • Water clear and Superior UV resistance
  • Low Odor
  • Can be tinted with all ROCK-TRED Universal Colorants 
  • Very Good chemical and abrasion resistance
  • Colorant loading is one 1.5 Colorant Jar (1/2 BagPak of Colorant) per 3.3 gallon mix

Physical Properties

Volume mix ratio

3.5 : 1.5 (Resin to Hardener) 

Viscosity (mixed)

400 – 500 CPS Typical 

Solids Content (%)

80% (ASTM D-2697) 

Hardness (ASTM D-2440)

65+ (Shore D) @ 7 day cure 


Compliant with all US Regulations 

Application Temps.

55° – 85°F 

Gel Time (see “Limitations” section below for more details)

40 - 60 minutes @ 75°F 

Dry to Touch (recoat with compatible products)

2 hours @ 75°F 

Through Cure

4 hours @ 75°F 

Open for light traffic/use

24 hours @ 75°F

Shelf Life

1 Year in unopened units



  • 1.65 Gallon Units 
  • 3.3 Gallon Units

Limitations & For Best Results

  • Do not apply when humidity exceeds 80%.
  • Do not allow to puddle during application.
  • Allow each coat to dry to ‘tack-free’ or clear prior to re-coat.
  •  When re-coating, apply the next coat within 16 hours of completing the previous coat.
  • Mix  on very low RPM or using a stir stick for 45-60 seconds.  DO NOT INTRODUCE ANY AIR.
  • When possible, squeegee on the shorter length of the roo m and immediately back roll in one pass in the opposite direction to strike off.  Thickness of application should be controlled by the squeegee.  Do not rely on back roll to eliminate puddles.   Do not over roll as this will entrain air.
  • Gel time listed above for this product should not be confused with working time – actual working time is typically 15-20 minutes at 75°F and 45% RH.
  • Do not use any reducer with this product.

Product Application

Apply by brush, roller and squeegee.  12” squeegees are recommended to help reduce pooling.  Unlike epoxy coatings P-80 has a longer pot life in the bucket and a shorter working time after it is poured onto the substrate.  For best results installation crews must work closely together and pour out only enough catalyzed material that can be cut in, squeegeed and quickly back rolled before it starts to gel.  Temperature and humidity will both increase how rapidly this material sets.  ROCK-TRED product test data is based on environmental temperatures of 75°F.  Viscosity and working time are always affected by temperatures above or below that mark.  When applying product always consider the ambient, surface, and product temperature at the time and place of installation. 

Color & Textures

CHEM-THANE P80 is manufactured in water clear.  Using a 1.5 Jar (equal to 1/2 of one BagPak) of any ROCK-TRED UNIVERSAL Colorant per 3.3 gallon mix is acceptable.  Most ROCK-TRED products are available in a wide range of textures using an appropriate aggregate. 

Product Storage

DO NOT allow ROCK-TRED products to freeze.  All ROCK-TRED products should be properly stored above the floor on pallets or shelves, and in an area that has a constant minimum temperature of 50°F. 

Chemical Resistance

Always refer to ROCK-TRED’s chemical resistance chart for specific information on each product / system or contact ROCK-TRED directly.  

Surface Preparation

Always apply ROCK-TRED products to a clean / sound substrate that is free of laitance, grease, oils, debris and curing compounds.  Make certain that concrete is property dried and prepared before applying ROCK-TRED 
materials.  Concrete substrates should be treated with the Rock-Block System when moisture testing per ASTM F2170 shows results over 80% RH.  Whenever possible, remove existing coatings and/or flooring systems completely; if complete removal is not possible test to determine adhesion to the existing material.  Mechanical preparation by means of shot-blasting or diamond grinding to ICRI CSP 2/3/5 is the recommended preparation method (see ICRI Guideline No. 03732 for more information). If the substrate is not properly prepared and the appropriate profile is not achieved, failure of the product to adhere to the substrate may occur. 

Clean Up

Application tools and equipment can be cleaned with soap and water immediately after use or with solvent once the product has begun to cure.  


Product containers will contain product residue and must be disposed of properly.   Label warnings must be observed at all times.  All containers must be disposed in accordance with federal, state, and local regulations.