Knowde Enhanced TDS
Identification & Functionality
- Chemical Family
- Product Type
- Technologies
- Product Families
Features & Benefits
- Ready-to-Use Product Features
- Features
- Good chemical and thermal resistance.
- Good resistance to impact and abrasion.
- Cures at high humidity.
- Good adhesion to new (10 day old) or damp concrete.
Applications & Uses
- Markets
- Application Method
- Compatible Substrates & Surfaces
- General Application Guidelines
Coverage: One (1) gallon of DUROFIL, when mixed with the maximum amount of aggregate (60 lbs.), has the consistency of concrete and yields about 0.5 ft3 of product. DUROFIL can be applied at almost any depth required at this consistency. DUROFIL applied at a depth of 1" will cover about 6 ft2 . If used with only the sand portion of the fill mix, thicknesses of up to 2" can safely be poured on horizontal surfaces.
Mixing Ratio:
- 3.6 parts base (B) to 1 part (A) hardener by weight.
- 3 parts base (B) to 1 part (A) hardener by volume.
To obtain a one (1) gallon unit, mix 3 quarts of base and 1 quart of hardener with 60 lbs. of fill mix. The fill mix, supplied by the applicator, consists of 30 lbs. of washed fine sand (sandblast sand about 2.5 gallons) and 30 lbs. of 1/4" pea gravel (about 2 gallons) per gallon of resin mix.
Pot Life: Pot life for a one gallon mix (1 gallon of resin and 60 lbs. fill mix) is about 30 minutes at 70ºF. Higher temperatures or larger volumes will shorten this time. Lower temperatures or spreading out the mix will extend the pot life.
Colors: DUROFIL is designed as an underlay material and therefore is not pigmented.
Surface Preparation:
- For maximum adhesion, material should be applied to a firm, clean, dry and abraded surface.
- Clean greasy, oily or waxed surfaces with suitable solvent before applying material.
- Best results will be obtained by abrasive blasting the surface.
- If blasting is impractical, water blasting, acid etching, or grinding can also be used.
- Surface may de damp (no standing water) during application.
Mixing & Application: A one (1) gallon unit of resin may be mixed in a 5 gallon pail using an electric mixer or in a 5 gallon electric bucket, mixer. For larger units, a side loading cement mixer may be used. Mix the base (B) and hardener (A) together first for about 30 seconds. Immediately add the fill mix and continue mixing for about one (1) minute to wet out the sand and gravel. Immediately pour the mix onto the area to be covered and level with a steel trowel or spreader bar. If the mix appears too dry, use less fill mix if too wet add more sand. Material temperature should be between 70º and 85ºF and surface temperature at least 40ºF.
Min. Thickness/Coat (mils) 30 Max. Thickness/Coat (mils) 2000 Number of Coats 1 - 2 Min. Application Temperature (ºF) 40 Clean Up: Most solvents and commonly used thinners such as MEK, acetone, xylene, I,I,I trichloroethane, and safety solvents such as Ensolv, etc., can be used for cleaning tools and equipment. However, as many of these materials are flammable or present other safety hazards, the user should read the MSDS for these materials before using. In no event should these materials be used to clean material from the skin, eyes or clothing.
Overcoating: DUROFIL may be overcoated with any DUROMAR product as soon as it is "tack free" or firm enough to accept the overcoat. If the DUROFIL is allowed to cure for more than five days before overcoating, the surface must be water washed and lightly sandblasted to prepare the surface for overcoating.
DUROFIL Overcoating Window 55ºF 70ºF 85ºF 2-48 hrs. Curing at 70ºF:
Dry to Touch (hours) 8 Functional Cure (hours) 36 Full Cure (hours) 120 Q/C: The material should be visually inspected just after application and touched up where necessary. Because of the concrete surface, Q/C techniques are limited. Therefore, extreme care must be used when inspecting the surface for imperfections.
Force Curing: Force cures are recommended for severe service conditions as both the physical and chemical properties are enhanced. Force curing should not start until material has firmly set. Recommended Force Cure Schedule:
Full Cure 4 hours @ 180ºF Functional Cure 8 hours @ 120ºF
Properties
- Typical Physical Properties
- Chemical Resistance
| Value | Units | Test Method / Conditions | |
| Bond Strength to Concrete | Exceeds tensile strength of concrete | — | — |
| Compressive Strength | 13 - 17000 | psi | — |
| Density | 2.21 | — | — |
| Dry Operating Temperature | max. 250 | °F | — |
| Flexural Strength (70ºF) | 5 - 8000 | psi | — |
| Linear Shrinkage | 0.01 | % | — |
| Operating pH Range | 2.5 - 14.0 | — | — |
| Solids | 100.0 | % | — |
| Tensile Strength (70ºF) | 2 - 3000 | psi | — |
| Value | Units | Test Method / Conditions | |
| Alcohols (Room Temperature) | Good | — | — |
| Alkalis (Room Temperature) | Excellent | — | — |
| Hydrocarhons (Room Temperature) | Good | — | — |
| Inorganic Acids (Room Temperature) | Fair | — | — |
| Organic Acids (Room Temperature) | Fair | — | — |
| Salts (Room Temperature) | Good | — | — |
| Solvents (Room Temperature) | Good | — | — |
Safety & Health
- Health & Safety
Read and understand all material given in the MSDS sheets before using the product.
Durofil does not contain any flammable material of any kind. However, the material is combustible. In the event of a fire, dry powder, foam, or carbon dioxide fire extinguishers should be used. Fire fighters should wear respirators.
Use protective gloves and eyeglasses when using.
Use in areas of good ventilation.
Packaging & Availability
- Packaging
4 gallon unit:
- 3 gallons base (B)
- 1 gallon hardener (A)
20 gallon unit:
- 15 gallons base (B) in 3 x 5 gallon pails
- 5 gallons hardener (A) in a 5 gallon pail
40 gallon unit:
- 30 gallons base (B) in a 30 gallon drum
- 10 gallons hardener (A) in 2 x 5 gallon drums
Storage & Handling
- Storage / Shelf Life
Store in dry area in closed containers between 50ºF and 110ºF. Shelf life at these conditions is greater than one year.