Platform Performance Flooring Systems — a Keene Inc. company

The workhorse leveler. Platform L2 corrects uneven or damaged floors with minimal surface preparation and dries to a smooth, hard surface ready for vinyl, LVT, carpet, engineered wood or ceramic. A variable water ratio lets the same bag either self-level or hold a ramp (1/4″ over 24″), so one product covers leveling and transitions on residential, commercial and renovation work.

• Foot traffic in 3–4 hours; trade traffic in 16 hours
• Install 1/4″ to 2″+ neat in a single lift
• No mechanical prep of concrete for pedestrian and light-commercial use*
• Will not support mold growth
• Suitable over electric and hydronic under-floor heating
• Compatible with select sound-attenuation systems

Coverage

≈25 sq ft @ 1/4″per 50 lb bag

Compressive strength

>4,500 psiASTM C109 modified

Working time

20 minutes

Time to flooring

16 hrs breathable24 hrs non-breathable, ≤1/4″

Water

4.25–4.75 qtper 50 lb, mix 2 min @ 650+ rpm

Application temp

50–90 °F

Suitable substrates: concrete, concrete plank, existing patching and leveling materials, sound gypsum, steel pan, cement or epoxy terrazzo, well-bonded VCT and ceramic tile, qualified non-soluble adhesive residue.

For projects you can only afford to do once. Platform L3 is the premium leveler for high-end flooring with strict flatness tolerances — large-format tile, LVT and engineered wood over big open areas. Higher flow gives a longer placement window, and the hardened surface resists wheel tracking and trade traffic while the rest of the job continues around it.

• Install 1/8″ to 2″+ neat in a single lift (3″ in isolated areas)
• Extended placement time for large pours
• Foot traffic in 3–4 hours; flooring in as little as 12 hours
• High strength and hardness resist wheel tracking
• Low surface preparation on most substrates
• Acceptable on UL fire-rated floor assemblies*

Coverage

≈25 sq ft @ 1/4″per 50 lb bag · 0.48 cu ft yield

Compressive strength

>5,000 psi @ 28 days>1,200 psi @ 24 hrs

Working time

15–20 minutes

Time to flooring

16 hrs breathable, ≤1″24 hrs non-breathable, ≤1/2″

Water

4.5–5 qtper 50 lb, mix 2 min @ 650+ rpm

Application temp

50–90 °F

Suitable substrates: concrete, concrete plank, existing patching and leveling materials, sound gypsum, steel pan, cement or epoxy terrazzo, well-bonded VCT and ceramic tile, non-soluble non-PSA adhesive residue.

The general-purpose patch. Platform XL balances a long working time with rapid, uniform drying, so you can spread a full mix without racing the bucket and still cover it within the hour. It mixes with water only — no primers or additives on most substrates — and trowels out creamy and grit-free from a feather edge to a full inch.

• Long working time with rapid, uniform drying
• Feather edge to 1″ thick application range
• No additives required — just add water
• Low alkalinity, adhesive friendly
• Creamy, grit-free application
• No dusting or cracking for a durable finish

Coverage

110–130 sq ft feather25–35 sq ft @ 1/8″, per 25 lb bag

Compressive strength

>4,000 psi

Working time

≈15 minutessets in 30 minutes

Ready to cover

30–75 minutestemperature dependent

Water

4 qt per 25 lbmix 2 min @ 650+ rpm

Application temp

Interior, above 50 °F

Suitable substrates: concrete (28 days old), APA-rated wood, primed and sound gypsum, quarry and ceramic tile.

Same product, new name. Platform FP is the fast feather-finisher: a latex-modified, fine-textured underlayment that mixes to a creamy consistency, trowels on with minimal effort and takes flooring in just 30 minutes. Keep a bag on the truck for seams, nail heads, gouges and the last skim before the installers arrive.

• Flooring in 30–60 minutes
• Feather edge to 1/2″ (12 mm) depth
• Suitable up to 100% RH
• Outstanding flexural strength — approved for wood and gypsum
• Non-alkaline, adhesive friendly
• Withstands construction and renovation traffic

Coverage

100–300 sq ft feather≈33 sq ft @ 1/8″ · ≈16.5 sq ft @ 1/4″

Working time

15 minutes

Foot traffic

30 minutes

Application depth

Feather to 1/2″

Application temp

50–90 °F

Shelf life

9 monthsunopened, stored per instructions

Suitable substrates: concrete, masonry, wood, ceramic tile, terrazzo, properly prepared cutback and non-water-soluble adhesive residue, epoxy moisture-vapor membranes (free from amine blush).

The patch professional floor installers have reached for for over 68 years. White Skimcoat is an economical, fast-setting gypsum patch that bonds to nearly any substrate — concrete, wood, tile and gypsum — and works on walls as well as floors. Mix with Platform's White Latex Liquid instead of water for extra adhesion and flexibility over problem substrates.

• Dimensionally stable with superior bond — no shrinkage
• Rapid drying: foot traffic in 30 minutes at 1/8″
• Horizontal and vertical applications
• Mildewcide protected
• Non-alkaline, adhesive friendly; grit-free finish
• Acceptable on UL fire-rated assemblies*

Coverage

110–130 sq ft feather25–35 sq ft @ 1/8″, per 25 lb bag

Working time

15 minutes

Foot traffic

30 minutes @ 1/8″

Thickness

Feather to 1″

Water

5.5 qt per 25 lbor White Latex Liquid

Application temp

Dry interior, above 50 °F

Suitable substrates: above-grade concrete, wood, ceramic tile, gypsum underlayments and walls.

One pail for every substrate on the job. Platform P360 is an acrylic copolymer primer that bonds to porous concrete and gypsum as well as non-porous epoxy, tile and terrazzo, and holds its bond at alkalinity up to pH 14. It dries in 45–90 minutes so you can pour the same day, and dilutes up to 3:1 with water on absorbent floors for exceptional coverage.

• Fast drying — pour self-leveler in 45–90 minutes
• Porous and non-porous substrates with one product
• Exceptional bond performance
• Prolonged resistance to pH 14
• Excellent coverage; dilutes up to 3:1
• Low odor, low-VOC

Coverage, porous

600–1,000 sq ft / galdiluted 3:1 water:primer, soft broom

Coverage, non-porous

450–650 sq ft / galundiluted, roller

Dry before SLU

45–90 minutes

Open time

Up to 48 hourskeep clean; re-prime after

Application temp

50–90 °Fdo not allow to freeze

Shelf life

24 months

Suitable substrates: absorbent and non-absorbent concrete, gypsum, wood, VCT, ceramic tile, cement terrazzo, cutback adhesive residue, epoxy moisture-vapor membranes, existing patching and leveling materials.