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ChemMasters’ Traz 25 is a high solids, high performance concrete curing & sealing compound for decorative concrete such as stamped and exposed aggregate. Traz 25 is formulated with methyl methacrylate polymers that develop high gloss and are more chemically resistant than standard acrylic sealers. Traz 25’s film will not yellow under any UV conditions and is extremely durable.

Product Type: Curing Compound, Sealer

Application Method: Brush, Roller, Spray

Chemical Family: Methacrylates

Features: Acid Resistant, Alkali Resistant, Chemical Resistant, Durable, Fast Drying, Freeze/Thaw Stability, Gasoline Resistant, Good Adhesion, Good Non-Yellowing Properties, Grease Resistant, High Gloss, High Performance, Hydrocarbon Resistant, Oil Resistant, Solvent Resistant, UV Resistant, Water Resistant

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Knowde Enhanced TDS

Identification & Functionality

Chemical Family

Features & Benefits

Advantages
  • Superior chemical resistance compared to standard acrylic or styrene acrylic sealers
  • High level of resistance to aliphatic solvents, acids, alkalis, gasoline, salts, oils, and grease
  • Excellent penetration, adhesion and durability
  • Superior resistance to ultraviolet light, freeze/thaw cycling and acid rain
  • High gloss for improved appearance and reduced maintenance costs
  • Easy to apply and recoat without extensive surface preparation; dries quickly
  • Dustproofs as it seals

Applications & Uses

Application Method
Compatible Substrates & Surfaces
Uses
  • Cure, seal, and protect horizontal decorative concrete and exposed aggregate.
  • Seal and protect any exterior, horizontal, or vertical concrete or masonry surface.
  • Protect and amplify the beauty of decorative concrete or some natural stone and pavers (a test area is required).
  • Deepens and enhances the color of decorative concrete while protecting it from water, freeze/thaw damage and most hydrocarbon chemicals.
  • Keep surfaces from dusting and chalking, makes them easier to clean.
Directions

Mixing: Do not dilute. Traz 25 is packaged ready to use. Stir or agitate before using.

Curing: Traz 25 has been specially formulated to meet the unique curing requirements of stamped concrete and exposed aggregate at 300 ft2/gal. It is not recommended for use as a cure on broom finished or smooth trowel fin-ished surfaces.

Sealing: Surface Preparation: Traz 25 may be applied to freshly placed stamped and exposed aggregate substrates after final finish has been applied. Smooth and broom fin-ish substrates must be a minimum of 28 days old and fully cured. In all cases, Traz 25 should be applied to a dry substrate. Surface and ambient temperatures must be a minimum of 40oF (4oC). Do not apply to frozen or frosted surfaces. Traz 25 should be conditioned to a minimum of 50oF (10oC) prior to application. Surface must be clean and free from dirt, dust, laitance, oil, grease, paints, curing agents, tilt up bond breakers, or other contaminants that would prevent proper adhesion. Multiple coats of sealing compounds should be chemically removed. Rinse thor-oughly and allow the substrate to dry completely before applying Traz 25. Joints to receive joint sealant should be masked or taped off prior to applying.

Application: Spray Apply with a low pressure, solvent resistant, airless, sprayer equipped with a fan nozzle ori-fice of 0.030 to 0.035” at 1 gpm. The optimum spray pat-tern is an 8” to 12” fan. Hold sprayer tip 8” to 12” from the surface of the concrete. Apply uniformly leaving no pin-holes or gaps. Do not allow the material to puddle.

Roller Apply: Use a short nap (1/4” max) solvent resistant roller. Apply a continuous film leaving no pinholes or gaps. Do not allow material to puddle.
Lambs wool applicator: Apply a continuous film leaving no pinholes or gaps. Do not allow material to puddle.
On porous or open textures or for greater chemical re-sistance an additional coat may be applied. Apply second coat when surface is tack free, typically about 1 hour at 70oF (21oC) with 50% relative humidity. Lightly acid etch smooth trowel finished concrete before sealing.
Do not over apply, less is better. Do not apply in excess of 300 ft2/gal per coat. Over application will reduce the breathability of the coating system and may result in de-laminating or discoloring of the sealer system when ex-posed to high water vapor pressures.
For best results apply when ambient air and surface temperatures are above 40oF (4oC) and below 90oF (32oC) avoid windy days and direct sunlight. Condition material to 50oF (10oC) before use.

Recoating: When the finish begins to lose its original lus-ter it can be restored using ChemMasters’ Gloss Restor-er. Contact ChemMasters’ Technical Service Department for assistance.

Cleanup

Clean tools and equipment with Polyseal Solvent, Xy-lene, or toluene.

Regulatory & Compliance

Certifications & Compliance
Standard Specification
  • Complies with the National Volatile Organic Compound (V.O.C.) Emission Standards Architectural Coatings, Federal EPA 40 CFR Part 59.
  • ASTM C 1315 Type I, Class A, Standard Specification for Liquid Membrane Forming Compounds for Curing and sealing Concrete
  • ASTM C 309 Type 1 or 1D, Class A&B, Standard Specification for Liquid Membrane Forming Compounds for curing Concrete
  • AASHTO M 148 Type 1 & 1D, Class A&B, Standard Specification for Liquid Membrane Forming Compounds for Curing Concrete
  • USDA approved for use around foodstuffs when Traz 25 is completely dried.

Technical Details & Test Data

Limitations
  • Traz 25 is not to be used as a bond breaker for tilt up construction
  • Traz 25 is not recommended for primary or secondary containment areas or for use under resinous coatings. Consult ChemMasters’ Technical Service staff for alter-native materials.
  • Traz 25 has been specially formulated to cure stamped concrete and exposed aggregate.
  • Do not apply:
  1. When temperature is below 40oF (4oC)
  2. When surface is frosted or frozen
  3. When surface has excess moisture from heavy precipitation or power washing
  4. As a cure on broom finished or smooth trow-eled concrete
  5. On interior surfaces.
  6. To joints or channels scheduled to receive elastomeric caulks.
  7. To surfaces scheduled to receive concrete overlays, toppings, or thin set mortars.
  8. In the presence of foodstuffs
  • Traz 25 will darken or highlight the subtle color varia-tions naturally present in concrete. When the differ-ence in shading is objectionable, consult ChemMas-ters’ Technical Staff for recommendations.
  • For best results condition material to a minimum of 50oF (10oC) prior to application.
Technical Data
Estimating Guide
Surface Texture / Coats ft2/gallon m2/liter
Rough porous first coat 300 to 350 7 to 8
Rough porous second coat 350 to 400 8 to 9
Smooth dense first coat 350 to 400 8 to 9
Smooth dense second coat 350 to 400 8 to 9

 

Test Data
Dry time @ 70°F (21°C)
Condition: Hours:
Recoat 1
Foot Traffic 4
Heavy Traffic 12
Solids 25%
V.O.C. Content <700 g/L

Packaging & Availability

Packaging Type
Packaging
Packaging and Product Number
1 gallon (3.8L)
case
1x1 gal
4x1 gal
F1434.01
F1434.04
Pails 5 gallon (8.9L) 36 per pallet F 1435.05
55 gallon drums 4 per pallet F1435.55

Storage & Handling

Storage

Store tightly closed containers in dry area away from direct sunlight and sources of heat. Shelf life of properly stored material is 3 years from date of manufacture.