This and That

In my last newsletter, I inadvertently left off a few additional products that will also work when going over existing adhesive residue with vinyl flooring products;

Mapei Primer T

is a low VOC, water based acrylic primer that enhances the performance and bond over traces of well adhered water resistant floor covering adhesive. Use undiluted over nonabsorbent surfaces such as floor covering adhesive residue. Haines item # MAP36657. public/US/products/Primer_T_EN_lr.pdf

Mapei Eco Prim Grip

is a ready to use, low VOC, synthetic resin based primer with bond promoting silica aggregate suspended in a dispersion that can be used over substrates that have a residue of old cutback residue on them. Haines item #MAP36163000. products/6324_ECO_Prim_Grip_EN_lr.pdf


is a high-solids, fast-drying, polymer-based compound formulated to treat

moisture in concrete slabs of up to 8 lbs. per 1,000 sq. ft. per 24 hours, and up to 90% relative humidity

when applied in a double-coat method. It also serves to control elevated alkalinity (pH) on concrete

slabs and isolate old adhesive residues in direct glue-down floorcovering applications. Haines item


APAC 31 Multipurpose Primer

is a low-VOC, water-based acrylic primer that improves the performance and adhesion of self-leveling underlayments on nonabsorbent surfaces such as ceramic tile, vinyl composition tile (VCT) and adhesive residue. A31D_A11Evp.pdf

VersaShield and VersaShield MBX

are to additional products that can be rolled out over adhesive residue and have flooring installed over them with no down time. VersaShield, Haines item

#HALHVS60 and VersaShield MBX, Haines item #HALHVS60MBX

Looking for that versatile tool for starting hardwood installation rows, repairing hardwood and floating LVT & LVP installations? Check out Kool Glide. Kool Glide can be used to bond mitered corners of a floating LVT & LVP installation and still allow it to remain a floating installation. The Kool Glide seaming iron is also a good way to repair laminate flooring in the middle of the floor.


Want to find an easier way with cutting Profile Rubber Base? Check out the D-Cut RC 200. Designed for cutting Profile Rubber Wall-Base such as Johnsonite Millworks, Roppe Contours, Flexco Base Sculptures, Burke Wall Base, and VPI Wall Base.

Much safer than a saw blade

No Dust

No Noise

No Electricity Required

Cutting capacity: 8″ wide, 7/8″ height for a straight cut and 5/8″ height for a bevel cut.


Haines item #DCURC200

Looking for an inexpensive Laminate Cutter? Look no more as Haines is now carrying the D-Cut


Cuts Laminate up to 8½″ wide

No Dust

No Noise

Cuts Angles as well as the length of the Laminate

Lengthwise Cutting

“L” Cuts

No Electricity Required

Haines item #DCUPL215

Did you know that Haines sells heavy duty flooring protection items? Check out these products;

Builder Board

is very similar to Ram Board or “Anchor.” Builder Board is 45 mils thick. This product replaces the need for bulky sheets of Masonite and with the use of Liquid Shield technology, Builder Board is spill proof. It defends against water, paint, mud and more. Builder Board is also 100% recyclable. Rolls are 38″ wide by 100 feet long.

   Allows vapors to escape for maximum breathability

   Tough enough to be driven on – approx. 45 mil. thick

   Easy to install – lays fast and flat

   1 roll covers the same as 10 sheets of Masonite

   Use to gain USGBC LEED points

Protects: Granite, Travertine, Marble, Terrazzo, Stone, Colored Concrete, Tile, Wood, Linoleum, etc.

Haines item #SSHBLDLS38100


is perfect for floor and wall covering protection, counter-top protection, temporary window or door replacement, and temporary clean room applications. Plasti Shield is extremely durable and can be precision cut with a standard utility knife. PLASTI-SHIELD is Light corrugated plastic sheeting that is perfect for protecting walls and floors. Plasti-Shield is easy to cut, carry and is an excellent alternative to Masonite. PLASTI-SHIELD is available in 4´ by 8´ sheets.

   Lightweight, strong and durable

   Impact resistant

   Cost effective

   Easy to convert



   Water resistant

   Non toxic and resistant to chemicals

Haines item # SSHPLS4896W4

Installation Notes;

I am often asked, “What type of vinyl flooring (Luxury Vinyl Plank/Residential Sheet) product can I

glue directly to an Oriented Strand Board (OSB) subfloor”? The answer here is none. Glue down vinyl

flooring cannot be glued directly to Oriented Strand Board subflooring or even plywood subflooring

material. These products will require an additional ¼″ plywood underlayment. Skim coating the

Oriented Strand Board or plywood subflooring to smooth it out for direct glue down of vinyl flooring is

also not recommended.

My issue with direct glue down of vinyl sheet and tile flooring is that most/all OSB manufacturers recom- mend the panels be spaced for expansion and contraction. When installing over these spaced joints, you will have subfloor joint telegraphing. Sooner or later, these joints will move and flex and force up the patch

or skim coat leaving you with a failure all around the edges of these panels.

Curing Compounds

I am often asked about can our flooring go over certain curing compounds. Mapei just put out a

statement which is dead on;

Curing Compounds are generally designed to dissipate from the concrete surface. This process is sped up by exposure to traffic and UV light, as well as weathering conditions. Curing compounds leave a film that can interfere with the adhesion of other materials to the treated surface. The key is to know when the curing compound has in fact dissipated enough from the concrete surface to bond to. If a curing compound has been used, a way to test is to sprinkle water on the concrete surface. If the water stays beaded up on the concrete surface than you can assume that the curing compound hasn’t had a chance to dissipate enough. If the water drops starts to absorb in 15-20 seconds, then adhesives and patching materials may bond into the pores of the concrete. In the traffic areas the sealer may have dissipated but along the walls or where there hasn’t been any traffic, the sealer may still there. If water is not readily absorbed, the concrete must be shot-blasted or mechanically abraded

to remove the curing compound or any other bond-breaking contaminants preventing absorption

These sealers/compounds are bond breakers and you should be meticulous in checking multiple areas of the substrate to make sure the curing compound has in fact dissipated sufficiently or you could have

a bond failure. The flooring industry does not test or endorse the use of these compounds as they can be bond breakers. If there is any concern about bonding to the substrate, we suggest performing several bond tests of the flooring in question.

The fact is we will never know how well a sealer/curing compound will stay bonded to the floor once it is covered by an adhesive or patching material. That makes it impossible to endorse the performance and compatibility of the sealer/curing compound as part of any flooring installation system. A good starting point would be to ask the manufacture of the curing compound/sealer if their product is designed to be a permanent bond coat and to have adhesive or patching materials bonded directly to it.

McAdoo Author Box

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