1. Revision Date: 1/24/2022
Polytek® Development Corp.
55 Hilton Street, Easton, PA 18042
610.559.8620 | sales@polytek.com
website: www.polytek.com
DESCRIPTION: Polytek’s Concrete Crack Fill – Thick, is a viscous material to patch holes, large divots, and cracks of all
sizes. It is a fast-setting, two-part epoxy paste adhesive conveniently packaged in a cartridge. It can be easily dispensed from
a standard caulking gun, eliminating the mixing and mess of working with epoxy. A Vaseline-like consistency holds glue
lines without dripping or sagging. This material can be painted, drilled, machined, sanded, tapped, or cut after full cure.
USES: Polytek’s Concrete Crack Fill – Thick, is perfect for patching holes, large divots, and cracks of all sizes in your floor
before coating with epoxy.
ADVANTAGES:
• Sets in 25-30 Minutes
• Waterproof
• Good Flexibility
• Can be Machined, Drilled, Sanded, Tapped, or Cut
• Convenient Cartridge Packaging for Caulk Gun Application
Physical Properties
Mix Ratio 1:1
Shore D Hardness 82D
Color Eggshell
Mixed Viscosity (Thixotropic Index,
1/10 RPM)
7.5
Coverage Varies by Application
Work Time 10-15 min
Recoat Time Immediately After Application
Dry Time 30 minutes
Light Foot Traffic 30 minutes
Light Vehicle Traffic 24 hours
Full Cure 24 hours
VOCs 0 g/l
Tensile Strength 8,500 psi
*All values measured after 24 hours at 73°F/23°C. ^Demold time varies with the thickness of the casting.
COVERAGE: Varies by application.
SURFACE PREPARATION: Prepare surface by sanding, grinding, water blasting, sandblasting, or shot blasting to
achieve a clean, porous and uniform surface that will allow the product to soak in and bond permanently. Clean out cracks
with a crack chaser (diamond blade). Chip out any loose or unstable material in the area to be filled. The most common
reason for coating failure is due to lack of preparation. The surface must be porous or rough enough to allow the product to
adhere.
MIXING INFORMATION: Remove the retaining nut and nose plug from the top of the cartridge. Insert the cartridge into
a caulk gun. For best results use a caulk gun with an 8 to 1 thrust ratio or higher. Dispense a small amount of material from
TECHNICAL DATA SHEET | CONCRETE CRACK FILL - THICK

2. Revision Date: 1/24/2022
Polytek® Development Corp.
55 Hilton Street, Easton, PA 18042
610.559.8620 | sales@polytek.com
website: www.polytek.com
the cartridge before attaching the static mixing nozzle to ensure that the two components (Part A and Part B) are flowing
from both sides of the cartridge nozzle. Attach the static mixing nozzle to the cartridge and if necessary, reinstall the
retaining nut. Tighten firmly. Trim the tip of the static mixing nozzle to deliver the desired size bead. The material should
flow from the static mixing nozzle in one uniform color when dispensed. The adhesive may also be dispensed without a
static mixing nozzle, but must be dispensed into a cup and thoroughly mixed before application.
APPLICATION: For best results use this product at or above 55°F. Surfaces should be clean, dry, and sanded before
application to remove dirt, dust, grease, loose paint, oils, or other contaminants. The adhesive will gel in about 30 minutes at
77°F. Assemble and clamp parts in position before the adhesive begins to gel. Keep parts clamped until the adhesive is
cured, about 24 hours. Cure time is faster at warmer temperatures and slower at cooler temperatures.
STORAGE AND CRYSTALLIZATION: Store between 60-90F in a dry place. After use, tightly reseal all containers
and store products on a raised surface during cold weather and avoid storing them near outside walls or doors. If available,
purge with dry nitrogen to preserve color and minimize moisture contamination. Do not allow to freeze during winter
storage. Do not use material with any signs of crystallization such as solid chunks, grainy texture, or white color.
Crystallization can be reversed by heating the material to 125-140F, and stirring occasionally until all crystals dissolve.
LIMITATIONS:
• Do not apply at temperatures below 50F or above 95F
• Do not let the mixed product sit in the static mixing tube for a prolonged period or it will render the cartridge
useless
• Do not apply over concrete with Moisture Vapor Emissions above 4.5lbs/1000 sq. ft/24hr
• For interior use only unless protected by a pigmented UV resistant coating
• Concrete must be cured for a minimum of 28 days
• Shelf life of this material is 1 year from the date of manufacture (see a batch number for manufactured date).
CLEAN UP: Uncured material can be removed with a solvent. Cured material can only be removed mechanically. All
empty containers must be disposed of according to local, state, and federal regulations.
SAFETY HANDLING: Wear protective gloves, clothing, and eye/face protection. Use only outdoors or in a well-
ventilated area. Avoid contact with the skin and eyes. Avoid breathing dust, fumes, gas mist, vapors, and spray. Wash hands
thoroughly after handling. Take off contaminated clothing and wash it before reuse. These products may cause skin and
respiratory allergic reactions. Consult product Safety Data Sheets for complete precautions for use of this product.
DISCLAIMER: The information contained herein is considered accurate; however, Polytek® Development Corp. makes
no warranty regarding its accuracy. The user must determine the suitability of the product for the intended use and accepts
all risk and liability associated with that use. For further details, review our standard Terms & Conditions of Sale.