ChemSystems Helix Epoxy Primer

• Helix Epoxy Primer is an excellent adhesion promoter for all interior overlay and opaque coating applications.
• Reduces the effects of moisture vapor transmission (MVT).
• Helix Epoxy Primer has excellent adhesion and flexibility.
• Helix Epoxy Primer has a long pot life (minimum 2 hours) with short open time for fast application of sealers and coatings.
• Helix Epoxy Primer is a water based formulation, with low odor, water cleanup, and is VOC complaint in all 50 states.
• Helix Epoxy Primer has a mix ratio of 1:1, and can be diluted with water to reduce solids.

1. Surface preparation: When using Helix Epoxy Primer, the surface must be structurally sound and clean - free of dirt, grime and other foreign substances like oils, silicones, all other waterproofing materials, form release agents, curing and parting compounds, and any sign of efflorescence. Helix Epoxy Primer will tolerate a moist substrate.
2. Mixing ratios, surface moisture, application method, and temperature at time of application play a large role in the integrity and long-term durability of this primer. We strongly recommend sampling and testing this material prior to large-scale application
3. If aggressive moisture movement on interior concrete is suspected, exact moisture movement levels can be measured using a moisture test kit in accordance with ASTM D4263 standards, following the manufacturer’s instructions. Moisture measurements of six to eight pounds and below are acceptable. If measurements fall outside of this range, Helix Epoxy Primer should not be applied.
4. Hard troweled burnished concrete must be chemically or mechanically prepared to promote proper adhesion. Extremely dense or burnished surfaces should be slightly abraded to better accept Helix Epoxy Primer.
5. ChemSystems, Inc. utilizes the International Concrete Repair Institute (ICRI) Concrete Surface Profile (CSP) standards for specifying finished surface roughness prior to applying Helix Epoxy Primer . For proper adhesion, the concrete must be a minimum #1 according to the ICRI CSP chart. Contact the ICRI at www.ICRI. org or ChemSystems, Inc. for more information on these surface profiles. 6. Helix Epoxy Primer should only be applied to substrates above 50 °F and below 90 °F.

Helix Epoxy Primer should be applied only after concrete has fully cured, approximately 28 days.
Warning ! Do not apply Helix Epoxy Primer to fresh concrete.

1. Helix Epoxy Primer is not recommended for application over surfaces previously painted or sealed with other sealers.
2. Before applying product, test Helix Epoxy Primer in an inconspicuous area for desired results. For application questions, contact ChemSystems, Inc
3. The following mixing instructions for Helix Epoxy Primer must be strictly adhered to. Helix Epoxy Primer has a mix ratio of 1 part A to 1 part B. Add one Part of B (cure) to one Part of A (resin) in an open container. Mix well. Helix Epoxy Primer will initially turn white when mixed, but will dry clear after 4-8 hours, depending on application thickness, temperature and humidity. Before Helix Epoxy Primer dries, clean equipment with water.
4. Helix Epoxy Primer is best applied with a high-quality, 1⁄4-inch short nap roller.
5. Roll out the primer so it soaks into the surface without puddles.
6. If applying to extremely porous surface (like bead-blasted concrete), test a small amount of the primer in an inconspicuous area to determine number of coats required for adequate coverage. Porous surfaces may require two coats.
7. Apply clear top coatings once Helix Epoxy Primer dries clear and dry to the touch. If dry time exceeds 24 hours, re apply another coat of Helix Epoxy Primer before applying topcoat.