FAQ: Contractors

Roofing & Waterproofing Contractors

Are APOC products Fire and Wind tested?
Yes. Some APOC products and systems have FM approvals and UL listings. Contact your local Representative and he can help get you the technical help you may need.

Are APOC products stocked or do they have to be special ordered?
Stocking distributors carry a fully line of mastics, cool roof coatings, primer and adhesives. There are many unique products which can also be special ordered.

Are there any special APOC products which might help me in my contractor business?
APOC #501 and #502 are 100 % neoprene repair materials, # 525 ArmorFlex is ideal for low sloped asphalt and coal tar roofs which pond water, #252 is a Title 24 approved white coating and #365 is an amazing all weather, all purpose cement which has excellent adhesion under water.

Do I need to be an approved contractor to buy APOC products?
Professional roofing contractors can purchase products and obtain a Manufacturers (material) warranty without being an APOC approved contractor.

How do I qualify for a Labor & Material warranty on an APOC roof system?
Contact your local APOC representative and ask about becoming an APOC Approved Contractor (AAC).

What roofs can I restore with APOC systems?
Smooth and gravel surfaced BUR, Mineral granule cap sheet, EPDM, select White single plies and most metal roofs.

What sales aids are available to contractors?
Contact your local APOC sales representative and he can help you with product literature, specifications, samples, submittals, on the job product demos and project case histories.

Where can I buy APOC products?
Ask for APOC products at your nearest commercial roofing supply house

Why should I use APOC products?
15 plant locations, roof mastics & coatings are formulated for the professional contractor, excellent quality control, one of the largest manufacturers of restoration products in the United States means we are able to stand behind our products.


Pavement Maintenance Contractors

How soon after installation can a new asphalt/blacktop parking lot or driveway be sealed?

We recommend you wait at least 6 months including one full summer season prior to sealing to allow it to fully cure and weather. After 6 months use the water bead test to determine if the surface is ready to be sealed: spray water across the surface; if it forms beads, it is not fully cured and not ready to be sealed yet, so you’ll have to wait a bit longer.

How soon after sealing can I drive on a blacktop surface?

Under most conditions you can drive on asphalt 24-48 hours after the last coat is finished. There are a few issues to note that affect dry time: 1) Areas in full shade will take longer than areas in full sun. 2) Cooler temperatures below 80° F and higher humidity above 50% can add up to 12 hours to the full cure time. 3) Driveways & parking lots with many cracks take longer; the more cracks and the deeper the cracks, the longer it takes to cure. 4) Thicker coats slow dry time. We always recommend two thin coats for best results.

Should an asphalt surface be hot or cold when applying sealer? Wet or dry?

A hot, dry parking lot or driveway above 95° F will dry too fast; the result can be a very uneven finish. We recommend cleaning the surface first, which also serves to cool off the surface. Make sure there is no puddled water before sealing. If the surface is too cold means the sealer will not set and cure properly. For best results we always recommend application at 65° F or higher for several hours before application, to ensure the surface is warm enough to allow a proper protective film. Shady areas, high humidity or cloudy conditions can slow the cure time of the sealer, so additional dry time between coats may be needed.

Why do I need 2 thin coats? Won’t one thicker coat work?

Applying two coats of any sealer will dry and create a better finish much better than one thick coat. These sealers are water based, and they cure and form a film primarily during the evaporation of water from the coating. A thin coat will evaporate much faster and create a single uniform layer. A second thin coat will fill in areas not filled by the first coat and create a deeper, richer, more uniform coat. Single thick coats cure less evenly, have a tendency to puddle, and are prone to tracking.


The information on this site is provided as a free service. It is based on common conditions and may not apply to your specific situation. Please contact a Gardner representative with specific questions or comments.