1. Adhesive or Bond Failure

• a. Failure to scuff, sand or clean joint before bonding.
• b. Improper support of deck or overhang seams.
• c. Improper mixing of seam kit or dry catalyst tube.
• d. Expired or old adhesive.

2. Cracking

• a. HI-MACS® countertop fabricated with stress riser.
• b. Failure to radius inside corner at least 13mm
• c. Failure to install tops on level plane surface.
• d. Failure to use heat tape at countertop cutout.
• e. Failure to reinforce countertops, cutouts and seams.
• f. Failure to allow a 1/8" gap every 10' for expansion.
• g. Failure to use silicone adhesive on dissimilar materials.
• h. Failure to cover all bonding surfaces with adhesive.

3. Discolored seams

• a. Failure to use clean : White, lint free rags.
• b. Failure to clean joints with denatured alcohol before adhering.

4. Uneven Surface Finish

• a. Use of a belt sander on countertop surface.
• b. Failure to use appropriate grit abrasive on sand paper
• c. sanding on one spot too long.
• d. Failure to control X&Y motion of sander equally.

5. Warping

• a. Failure to fabricate and install countertop on level, plane surface.
• b. Failure to store received materials properly as prescribed.
• c. Failure to add 1/8" gap for expansion every 10'
• d. Failure to use heat tape on countertop cutouts.