Liquid Granite™
Chip is broadcast to refusal — until no wet spots show through. Gives the dense, speckled granite look and hides the slab completely.
Chip rate 10 ft² per pound
Liquid Granite™ / Liquid Terrazzo™
Materials & Specification
What we actually put on your floor.
No mystery buckets. This is the full build-up we install — the products, the coverage rates, the cure windows, and the chemical-resistance numbers — straight off the manufacturer’s system specification.
The System
Two finishes, one build-up.
Both are colored chips broadcast into a 100%-solids pigmented epoxy and sealed under a clear polyaspartic topcoat. The only difference is how heavily the chip is broadcast.
Liquid Terrazzo™
Chip is sprinkled evenly and sparsely, so the base color still reads through. A cleaner, more terrazzo-like finish.
Chip rate 100 ft² per pound
Build-up
25–35 mils DFTClear topcoat
EC-102 Polyaspartic — 200–300 ft²/gal
Broadcast coat + color chip
EC-34 Epoxy — 175–225 ft²/gal, TC-60 chip to refusal
Primer coat
EC-12 Epoxy Primer — 250–300 ft²/gal
Concrete substrate
Min. 2,500 PSI, cured 28 days, profiled to CSP 2–3
USDA compliantChemical resistant100% solidsHigh buildSeamlessEasy clean upDurableDecorativeChoice of colorsCan be installed solvent free
Components
Every product in the stack.
Five components in the standard build. Shelf life is from date of manufacture, unopened.
| Code | Product | Role in the system | Shelf life |
|---|---|---|---|
| EC-72 | Epoxy Patch Gel | Fills cracks and spalls before priming | 2 years |
| EC-12 | Epoxy Primer | Penetrates and bonds to the prepared slab | 2 years |
| EC-34 | Epoxy Topcoat | Pigmented broadcast coat that carries the chip | 2 years |
| EC-102 | Polyaspartic | Clear wear layer — UV stable, chemical resistant | 2 years |
| TC-60 | Color Chips | The decorative flake itself | n/a |
Application
How it goes down, step by step.
Mix ratios are by volume. Every figure below assumes 72°F and 50% relative humidity — cooler slows everything down.
1
Inspect & prepare
The slab has to be structurally sound, clean, dry, and free of grease, paint, oil, dust, curing agents and laitance. Cracks and joints get pre-cut with a diamond blade to at least ¼ × ¼ inch. We profile to CSP 2–3 per ICRI — aggressive enough to bite, not so smooth the coating can’t key in.
- Min. concrete strength
- 2,500 PSI
- Min. cure before coating
- 28 days
- Surface profile
- CSP 2–3 (ICRI)
2
Test for moisture
This is the step that gets skipped and causes failures. Every slab gets tested before a seamless coating goes on. Over either threshold and a moisture vapor barrier (EC-15) goes down first — no exceptions.
- Moisture emission limit
- 5 lbs / 1,000 ft² (ASTM F1869)
- Relative humidity limit
- 75% RH (ASTM F2170)
- If exceeded
- EC-15 Moisture Vapor Barrier
3
Treat cracks
EC-72 Epoxy Patch Gel mixed 1:1 for 3–4 minutes, worked into the crack with a trowel or putty knife. Slightly overfilled, then ground flush once hard. Honest caveat: patching is a remedial fix, not a guarantee — if the slab moves again, the coating over it can crack again.
- Mix ratio
- 1A : 1B by volume
- Dry before priming
- 2–3 hours
- Sand/grind flush
- 4–6 hours
4
Prime
EC-12 mixed 2:1 for 3–4 minutes, thinned with 1–2 quarts of CA-23 per 1½-gallon kit for deeper penetration. Applied with trowel or squeegee then back-rolled for full coverage, and carried up the cove to the termination point. Thinned material stays under 5 mils and is never allowed to puddle, or it won’t cure properly.
- Mix ratio
- 2A : 1B by volume
- Coverage
- 250–300 ft² / gal
- Max film (thinned)
- < 5 mils
5
Broadcast coat
EC-34 mixed 2:1, with all part A’s boxed together first so the color stays consistent across the floor. Chip goes into the coating while it’s still wet — to refusal for Granite, evenly sprinkled for Terrazzo. Once cured we sweep, scrape or sand the surface back, then sweep and vacuum every loose chip before topcoating.
- Mix ratio
- 2A : 1B by volume
- Coverage
- 175–225 ft² / gal
- Chip — Granite
- 10 ft² / lb (to refusal)
- Chip — Terrazzo
- 100 ft² / lb
6
Topcoat & cure
Clear EC-102 polyaspartic seals the whole thing. Recoat as soon as the previous coat is dry to the touch, but never later than 24 hours or intercoat adhesion suffers. Then the floor needs to be left alone — this is the part customers push on and it’s the part that matters most.
- Coverage
- 200–300 ft² / gal
- Recoat window
- 3–5 hrs, max 24 hrs
- Max per coat
- ≤ 6 dry mils
Before you use the floor
At 72°F / 50% RH. Rushing these is the single most common way a good install gets ruined.
- Foot traffic
- 48 hours
- Vehicle traffic
- 72 hours minimum
- Heavy abrasion & chemicals
- 5 days
- Contact with water
- 48 hours minimum
Options
Where the spec can flex.
The standard stack covers most jobs. These are the documented substitutions we can make when a floor needs something different.
Faster turnaround / vehicle traffic
- EC-102 Polyaspartic as the primer — thinned 20% with CA-23 at 400–500 ft²/gal, broadcast can follow in 1–4 hours instead of overnight.
- EC-102 for the broadcast coat and topcoat where vehicles are involved — better UV and chemical resistance, faster dry.
- EC-101 Polyaspartic 100% Solids for greater UV protection and a quicker install.
Slip resistance
- CA-30 Small or CA-31 Large Safe Grip broadcast into the EC-102.
- CA-33 Aluminum Oxide for heavy-traffic areas.
- Strongly recommended anywhere the floor may get wet, oily or greasy.
Movement & substrate issues
- Westcoat Flex Epoxy System installed underneath when a fully flexible membrane is needed.
- TC-29 Concrete Patch for holes, spalls and minor cracks.
- Epoxy Cove System to form the wall-to-floor transition.
Alternate coats
- EC-33 in place of EC-34 for the broadcast coat.
- EC-36 100% Solids Epoxy plus a CA-36 Color Pack in place of EC-34.
- EC-36 in place of EC-102 for the topcoat.
- EC-11 Water-Based Epoxy for a fully water-based, light-duty install.
Colors
Chip blends & base colors.
The chip blend sets the character; the base color underneath shifts it warm or cool. These are the manufacturer’s recommended pairings — we’ll put physical samples in your hands before anything gets mixed.
| Chip blend | Granite base | Terrazzo base |
|---|---|---|
| Sandstone | Travatan | Travatan or Deep Tan |
| Shadow | Cape Cod Gray or Pewter Gray | Pewter Gray, Cape Cod Gray or Black |
| Atascadero | Travatan or Deep Tan | Travatan or Deep Tan |
| Dove Gray | Cape Cod Gray or Pewter Gray | Pewter Gray or Cape Cod Gray |
| Granite | Cape Cod Gray or Pewter Gray | Pewter Gray, Cape Cod Gray or Black |
| Storm Cloud | Concrete Gray or Cape Cod Gray | Pewter Gray, Cape Cod Gray or Black |
| Niagara | Cape Cod Gray | Pewter Gray or Cape Cod Gray |
| Mocha Tweed | Deep Tan or Travatan | Travatan, Deep Tan or Tile Red |
| Desert Storm | Travatan | Travatan, Deep Tan or Black |
Test Data
Chemical resistance, measured.
EC-102 polyaspartic topcoat, tested per ASTM D1308. Single figures are 2-hour contact; a slashed pair is 2-hour / 24-hour.
5Best — no effect4Softens, recovers3Softens, no recovery2Blistered, no recovery1Worst — destroyedsStains but resists degradation
Muriatic acid (31.5% HCl)5
Sulfuric acid (50% H₂SO₄)5
Sulfuric acid (93% H₂SO₄)1
Nitric acid (10% HNO₃)5
Sodium hydroxide (50% NaOH)5
Isopropyl alcohol (99%)5
Ethanol5
Methanol5
Bleach (sodium hypochlorite)5
Vinegar (3–5% acetic acid)5
Transmission fluid5
Gasoline4
Brake fluid5
409 surface cleaner5
Pine-Sol solution5
Blood & body fluids5
Iodine solution5
Mustard5
Ketchup5/5
Red wine5/5
Acetone4
Methyl ethyl ketone (MEK)4
Xylene5
Skydrol3s
Limitations
What this system won’t do.
Straight from the spec. We’d rather tell you up front than argue about it later.
- Interior use only.
- Professional installation only.
- Do not apply below 50°F or above 90°F — cooler temperatures slow cure times.
- Exceeding ≤ 6 dry mils per coat can reduce EC-102 hardness and increase the chance of tire staining.
- Tire traffic before the 72-hour cure can cause plasticizer migration and tire staining.
- Thinly applied coatings may not hide epoxy patches, rough concrete or shot-blast tracks.
- EC-102 must cure 48 hours minimum before contact with water.
- EC-102 has an odor during installation.
- A heavier topcoat can become slippery — slip-resistant additive strongly recommended for wet or oily areas.
- Slab moisture and vapor drive must be tested first.
- Approval of proposed colors, textures and slip resistance is recommended before install.
- Materials must never be allowed to freeze.
Maintenance
Keeping it for the long haul.
The finish is easy to live with. The only thing it genuinely needs is a topcoat refresh before the wear layer is gone — resealing on schedule is far cheaper than re-doing the floor.
Day to day
Dust mop, or damp mop with a neutral-pH cleaner. No harsh degreasers needed.
Inspect
Have the floor looked at for wear every 2 to 4 years.
Reseal
Fresh topcoat every 3 to 5 years, depending on traffic and UV exposure.
Spills
Wipe up promptly. See the chemical-resistance table for what tolerates a long dwell.
Spec'd, not guessed
Want this build-up on your floor?
We'll walk the slab, test it for moisture, and put physical chip samples in your hands before anything gets mixed.
Source & attribution
Liquid Granite™, Liquid Terrazzo™ and the EC-, TC- and CA- product codes on this page are products of Westcoat Specialty Coating Systems. Technical figures are reproduced from their published system specification (rev. 11/25) so that what you read here matches what the manufacturer requires. This page is for information only and does not replace the manufacturer’s product and system specification sheets.
Westcoat Liquid Granite / Liquid Terrazzo system specification (PDF)