User Manual

6
For best results, old concrete should:
• Be completely dry before application of HERCULINER.
• Be thoroughly cleaned with a muriatic acid wash.
1. Use 45% to 50% muriatic acid solution.
2. Agitate the solution on the surface with a hard-bristled deck brush.
3. Rinse off with 5% ammonia/water solution.
4. Dry completely.
5. Brush off residue.
• Be wiped with xylene (Xylol), acetone or MEK cleaning solvent.
Allow solvent to dry completely before applying HERCULINER.
Sealed concrete should be tested for HERCULINER adhesion:
1. Clean the surface thoroughly.
2. Roughen the surface.
3. Wipe with xylene (Xylol), acetone or MEK cleaning solvent.
4. Allow solvent to dry completely before applying HERCULINER.
5. Apply HERCULINER.
6. If delamination occurs, the sealer must be removed by mechanical means (i.e., shot blasting).
For surface preparation of oil or chemically soaked concrete or other unusually difficult surfaces,
contact HERCULINER toll-free at 1-800-477-5847.
Concrete Plus Primer
HERCULINER exhibits good adhesion to new acrylic and polyurethane primers applied and
overcoated to the manufacturer’s recommendations. Be sure to apply HERCULINER within the time
specifications of the primer manufacturer.
Asphalt
1. Prime the surface with a mineral spirit- or water-based driveway sealer according to the
manufacturer’s specifications.
2. HERCULINER can then be applied.
Aluminum
Roughen the surface and use primer compatible with aluminum and one part polyurethane. If needed,
use a primer specifically made for aluminum. If in doubt, make a small test application first. Contact
HERCULINER for technical assistance toll-free at 1-800-477-5847.
Metal
All smooth metal should be cleaned and aggressively roughened. HERCULINER adheres well to
sound-painted metal. Most rough metal surfaces need not be primed; however, on applications of
extreme wear, such as step nosings, a primer is recommended.
Rust
All rust should be removed down to the bare metal before applying HERCULINER.
Wood
If wood texture is rough, it may not require special preparation. For best results, lightly sand wood
surface before applying HERCULINER. Some pressure-treated woods may need priming. If in doubt,
make a small test application first. HERCULINER will bond to Wolmanized treated wood without
priming.
Paint and Varnish
1. Remove all peeling, cracking or chipping paint.
2. Clean surface thoroughly.
3. For best results, lightly sand surface.
4. Wipe with xylene (Xylol), acetone or MEK cleaning solvent.
5. Allow solvent to dry completely before applying HERCULINER.
Rubber
Clean well using detergent or cleaning solvent, removing all oil, grease, wax and dirt. Rinse well and
allow to dry. Roughen the surface aggressively and then clean with xylene (Xylol), acetone or MEK
cleaning solution. Allow solvent to dry completely before applying HERCULINER. HERCULINER
coating will not bond to chlorinated rubber.