Sikalastic®-851 R

Application area

:

Roof | Interior | Exterior

Chemical Base

:

Modified Polyurethane/ Polyurea-Hybrid

Colour

:

Component A (ISO): Clear/ brownish | Component B (Resin): Grey or yellowish *Mixed product: grey ~ca RAL 7004

Shelf Life

:

Component A: 12 months from date of production | Component B: 12 months from date of production

Storage Conditions

:

Must be stored properly in original, unopened and undamaged sealed packaging in dry conditions at temperatures between +5 °C and +30 °C

Type

:

Roof waterproofing membrane

Usage

:

For use as a waterproofing membrane on flat and pitched roof structures with additional top coat for UV-protection | Underneath planting or hard landscaping on podium areas | Other concrete structures and on non-trafficked concrete areas

Packaging

:

Component A: 211 kg drum | Component B: 202 kg drum

12 Months Shelf Life

:

Yes

Ambient Air Temperature

:

+8 °C minimum/ +50 °C maximum

Applicator

:

Spray

Chemical Resistance

:

Bitumen | Alkalis

Crack Bridging Ability

:

Dynamic crack-bridging class: B 4.2 | Static crack-bridging class: A 5

Density

:

Component A: ~1.08 kg/ l | Component B: ~1.04 kg/ l | Mixed resin: ~1.00 kg/ l (Cured film) *All density values at +23 °C

Dry Film Thickness

:

Exposed Roof Waterproofing: ~1.6 mm (Waterproofing) | ~0.2 mm (UV Protection) | ~1.8 - 2.1 mm (Total) | Non-Exposed Roof Waterproofing: ~2.1 mm (Waterproofing)

Excellent Crack-Bridging Properties

:

Yes

Good Adhesion To Most Substrates

:

Yes

High Solids - Contains No Fillers

:

Yes

Highly Elastic And Crack Bridging

:

Yes

Low Viscosity

:

Yes

Mixing Ratio

:

Component A : Component B = 1 : 1 (By volume) | Component A : Component B = 1.04 : 1 (By weight)

Product Temperature

:

Component A: +70 - 80 °C | Component B: +65 - 70 °C | Hose: +65 - 70 °C

Reaction To Fire

:

Euroclass E (EN 13501-1 | DIN EN ISO 11925-2 )

Relative Air Humidity

:

80 % r.h. maximum

Resistance To Root Penetration

:

Free of penetration of the roots | Free of growth into the ground (DIN 4062)

Seamless Waterproofing Membrane

:

Yes

Shore A Hardness

:

Temperature +8 °C: ~81 (After 1 hour) | ~88 (After 24 hours) | ~88 (After 28 days) and Temperature +23 °C: ~83 (After 1 hour) | ~88 (After 24 hours) | ~88: After 28 days

Substrate Moisture Content

:

≤ 4 % pbw moisture content

Substrate Temperature

:

+8 °C minimum/ +55 °C maximum | ≥ 3 °C above dew point

Tensile Strength

:

~11.0 N/ mmv (28 days/ +23 °C) (DIN 53504)

Thermal Resistance

:

Sshort term resistant to mastic asphalt (Hot poured asphalt) applied at a maximum of +240 °C | Elastic properties are maintained at temperatures as low as -30 °C

Viscosity

:

Component A: ~2300 mPa·s at +20 °C | Component B: ~2300 mPa·s at +20 °C

Water Vapour Permeable – Allows The Substrate To Breathe

:

Yes

Certification

:

ISO 14001 SGS | ISO 9001 SGS