Sikalastic RoofPro is a fully-reinforced, cold liquid-applied membrane family of single-component moisture-triggered aliphatic polyurethane resins (with Reemat fiberglass or Sika Fleece polyester reinforcement), plus Sikalastic-500 silicone for coating-only restorations. RoofPro system tiers (Metal/10/15/20/25) correspond to warranty terms, with total dry film from 32 to 84 mils.
Coating products & published specs.
Sikalastic 601 BC (US)
Polyurethane
- CoverageRoofPro 10: 35 wet mils at 45 sf/gal
- Solids78.0% by volume / 84.3% by weight
- Film build35-45 wet mils per base layer
- WarrantyRoofPro 10/15/20/25-year reinforced system tiers
Full specs & data sheet
Application
Coverage: RoofPro 10: 35 wet mils at 45 sf/gal; RoofPro 15/20/25: 45 wet mils at 35 sf/gal (base/embedment layer)
Film build: 35-45 wet mils per base layer; total RoofPro system dry film 52-84 mils
Physical properties
Solids: 78.0% by volume / 84.3% by weight
- System breaking strength psi 1030 (RoofPro 20 w/ Reemat Premium, ASTM D751)
- 900 w/ Sika Fleece 140
- System elongation % 21 (Reemat) / 82 (Fleece 140)
- Tear strength lbf in 300 (Reemat) / 200 (Fleece)
- Voc 212 g/L
- Color Oxide red
- Packaging 5-gal pails
Warranty
RoofPro 10/15/20/25-year reinforced system tiers
Sikalastic 621 TC (US)
Polyurethane
- Coverage20 wet mils at 80 sf/gal (RoofPro Metal) to 45 wet mils at 35 sf/gal (RoofPro 20/25)
- Solids81.3% by volume / 87.4% by weight
- Film build20-45 wet mils per layer (Reemat systems)
- WarrantyRoofPro Metal / 10 / 15 / 20 / 25-year system tiers
Full specs & data sheet
Application
Coverage: 20 wet mils at 80 sf/gal (RoofPro Metal) to 45 wet mils at 35 sf/gal (RoofPro 20/25); with Sika Fleece 70-100 wet mils at 23-16 sf/gal
Film build: 20-45 wet mils per layer (Reemat systems); 70-100 wet mils wet-on-wet (Fleece systems); total system 32-84 dry mils
Physical properties
Solids: 81.3% by volume / 87.4% by weight
- Solar reflectance initial 0.88 (white RAL 9016, ASTM C1549)
- Sri initial 110
- Voc 183 g/L
- Approvals FM 4470 Class 1, Miami-Dade NOA, Energy Star (white), ASTM D7311 compliant
- Colors White, Pearl Gray, Steel Gray, Mushroom, Copper Green
Warranty
RoofPro Metal / 10 / 15 / 20 / 25-year system tiers
Sikalastic-641 Lo-VOC
Polyurethane
- CoverageWith Sika Reemat Premium: 32-80 sf/gal depending on 20-50 wet mil spec
- Solids89% by volume (ASTM D2697)
- Film buildSystem dry film 62 mils (10/15-yr) to 89 mils (25-yr Fleece)
- WarrantyRoofPro reinforced system warranties (10-25 year tiers)
Full specs & data sheet
Application
Coverage: With Sika Reemat Premium: 32-80 sf/gal depending on 20-50 wet mil spec; with Sika Fleece: 24-64 sf/gal at 25-66 wet mils
Film build: System dry film 62 mils (10/15-yr) to 89 mils (25-yr Fleece); metal systems 36 mils dry minimum
Physical properties
Solids: 89% by volume (ASTM D2697)
- System tensile psi 1030 (w/ Reemat Premium) / 900 (w/ Fleece 140)
- Low-VOC, low-odor version for occupied buildings and VOC-regulated regions
Warranty
RoofPro reinforced system warranties (10-25 year tiers); sample warranties published by Sika
Sikalastic-500
Silicone
- CoverageRoofCoat 10: 1.5 gal/100 sq ft
- Solids92-96% by volume and by mass (ASTM D2697)
- Film build24 wet / 23 dry mils (10-yr)
- WarrantySika RoofCoat 10/15/20-year coating system tiers
Full specs & data sheet
Application
Coverage: RoofCoat 10: 1.5 gal/100 sq ft; RoofCoat 15: 2.0 gal/100 sq ft; RoofCoat 20: 2.5 gal/100 sq ft
Film build: 24 wet / 23 dry mils (10-yr); 32 wet / 31 dry (15-yr); 40 wet / 38 dry (20-yr)
Physical properties
Solids: 92-96% by volume and by mass (ASTM D2697)
- Tensile psi 300 (ASTM D2370)
- Tear strength 45 lb/in (ASTM D624)
- Shore a hardness 50 +/- 5
- Solar reflectance 0.88 initial (ASTM C1549)
- emittance 0.91
- SRI 112
- Voc 35.4 g/L
Warranty
Sika RoofCoat 10/15/20-year coating system tiers
*Approximate street prices from public listings — specs & pricing researched August 2026. Actual pricing varies by distributor, region, and volume — always confirm current pricing.
Where to buy Sika coatings.
Sikalastic roofing liquids are sold through Sika's reps and installed by approved applicators for the 20-year warranty; not a retail or shelf-stocked distributor brand.
Sika contractors by state.
Find your Sika rep.
- ME, NH, VT, MA, CT, RI, NY, NJ, PA, DE, MD, WV, Northern VA, DC — Brian Weissberg, Regional Sales Manager – Eastern — 917-885-5567 — weissberg.brian@us.sika.com
- VA (except DC), NC, SC, TN, MS, GA, AL, FL, Puerto Rico, Bermuda, Bahamas, Virgin Islands — Chris Whitehouse, Regional Sales Manager – Southeast — 909-746-3576 — whitehouse.chris@us.sika.com
- MN, ND, SD, WI, IL, MI, IN, OH, KY, NE, OK, TX, IA, KS, MO, AR, LA — Bill Schaefer, Regional Sales Manager – Central — 312-720-4792 — schaefer.bill@us.sika.com
- NM, CO, UT, WY, MT, ID — Eric Karman, Regional Sales Manager – Mountain — 714-878-3692 — karman.eric@us.sika.com
- CA, OR, WA, NV, AZ, AK, HI — Rob Erklin, Regional Sales Manager – Western — 312-720-5597 — erklin.rob@us.sika.com
✓ From Sika’s published roster · verified August 2026
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