Product Data Sheet Safety Data Sheet Show all documents
Sikalastic®-632 R
Sikalastic®-632 R
Sikalastic®-632 R
Sikalastic®-632 R
Sikalastic®-632 R
Sikalastic®-632 R
Sikalastic®-632 R
Sikalastic®-632 R
Sikalastic®-632 R
Sikalastic®-632 R

Sikalastic®-632 R

Polyurethane 1-part rapid cure liquid applied membrane for roof waterproofing

Sikalastic®-632 R is a polyurethane, 1-part, rapid cure, cold-applied, moisture cured, crack- bridging, liquid applied membrane. Provides a seamless, chemical resistant, durable waterproofing solution for flat or sloping roofs, external balcony and terrace decks.

  • Resistant to root penetration
  • Rapid curing
  • 1-part, cold applied
  • Resistant to chemical exposure
  • No mixing, ready to use
  • Seamless
  • Moisture triggered chemistry (MTC)
  • Moves with normal thermal movement
  • Reinforced system provides waterproofing complex detailing of roof or deck penetrations
  • Rain resistant almost immediately on application
  • Vapour permeable, allows substrate to breathe
 
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Product Data Sheet Safety Data Sheet Show all documents

Usage

Waterproofing:
  • Flat and sloping roof structures
  • External balcony and terrace decks
  • New construction and refurbishment projects
  • Applied typically to cementitious, bituminous, brick, asbestos cement, metal, tiled substrates
  • Roofs with numerous details such as penetrations, drains, roof lights and complex geometry
  • Failing roofs to extend service life
  • Underneath bonded tiles on balcony and terrace decks

Advantages

  • Resistant to root penetration
  • Rapid curing
  • 1-part, cold applied
  • Resistant to chemical exposure
  • No mixing, ready to use
  • Seamless
  • Moisture triggered chemistry (MTC)
  • Moves with normal thermal movement
  • Reinforced system provides waterproofing complex detailing of roof or deck penetrations
  • Rain resistant almost immediately on application
  • Vapour permeable, allows substrate to breathe
 

Packaging

21 kg container

Colour

Light grey

Product Details

Sustainability / Certifications / Approvals

APPROVALS / CERTIFICATES

  • Analysis of Paint USEPA Method 24, Sikalastic®-632 R, Material Lab, Test report No. 172075EN171253(1)
  • Elongation, Tensile Strength, Phosphorus Strength, Durometer Hardness A tests ASTM D412-06a, Sikalastic®-632 R, Korea Testing & Research Institute, Test report TAJ-003445
  • Hardness, Weight loss, Nonvolatile ASTM C 836-03, Sikalastic®-632 R, SGS Korea, Test report No. CMT2017-1028
  • Initial Surface Absorption BS 1881 : Part 208, Sikalastic®-632 R, Department of Science Service Thailand, Test report No. 0307/681
  • Root Resistance DIN 4062, Sikalastic®-632 R, kiwa, Test report No. P 10565a-E
  • Tensile ASTM D 412 - 06a, Sikalastic®-632 R, SGS Korea, Test report No. CMT2018-2265
  • Water Vapour Transmission and Permeance ASTM E96/96M, Sikalastic®-632 R, Korean Testing & Research Institute, Test report No. TAK-2018-121232
Product Information

Composition

Aromatic polyurethane

Shelf life

9 months from date of production

Storage conditions

Product must be stored in original, unopened and undamaged sealed packaging in dry conditions at temperatures between +10 °C and +30 °C.

Always refer to packaging.

Density

~1,40 kg/l

(EN ISO 1183-1)

Value at +23 °C

Solid content by weight

~90 % (+23 °C / 50 % r.h.)

Solid content by volume

~82 % (+23 °C / 50 % r.h.)

Volatile organic compound (VOC) content

≤ 150 g/L

(ASTM D2369-98 / USEPA Method 24)
System information

System Structure

Sikalastic®-632 R is part of the following roof waterproofing and coating systems.

Reference must be made to the following System Data Sheets: 

Roof Waterproofing systems

Roof Coating systems

SikaRoof® MTC-05 UV AP

SikaRoof® Pro -1 AP

SikaRoof® MTC-08 UV AP

SikaRoof® Pro -3 AP

SikaRoof® MTC-10 UV AP

Consumption of Sikalastic®-632 R base coats within the systems:

System

1st base coat

2nd base coat

SikaRoof® MTC-05 UV AP

≥ 1,05 kg/m2

≥ 0,70 kg/m2

SikaRoof® MTC-08 UV AP

≥ 1,05 kg/m2

≥ 1,05 kg/m2

SikaRoof® MTC-10 UV AP≥ 1,40 kg/m2≥ 1,05 kg/m2
SikaRoof® Pro -1 AP≥ 1,05 kg/m2≥ 1,70 kg/m2
SikaRoof® Pro -3 AP≥ 1,05 kg/m2≥ 1,05 kg/m2
Technical Information

Shore D Hardness

~62

(ASTM C836-03)

Tensile Strength

~4,0 MPa

(ASTM D412)

Tear Strength

≥ 15 N/mm

(ASTM D624)

Crack Bridging Ability

2 mm (no cracks)

(ASTM C836)

Resistance to Root Penetration

Pass

(DIN 4062)

Water Absorption

0,643 (perms)

(ASTM E96/96M)

Chemical Resistance

Resistant to many chemicals. Contact Sika Technical Service for additional information.

Service Temperature

–35 °C min. / +80 °C max.

Dry film thickness

Refer to the individual System Data Sheet

Application

Application Information

Ambient Air Temperature

+10 °C min. / +40 °C max.

Relative Air Humidity

5 % min / 85 % max.

Substrate Temperature

+5 °C min. / +60 °C max.

Dew Point

Beware of condensation.
The substrate and uncured applied membrane must be at least +3 °C above dew point to reduce the risk of condensation or blooming on the membrane finish.

Substrate Moisture Content

Refer to Product Data Sheet of the appropriate primer

Substrate Pre-Treatment

Reference must be made to the Sika® Method Statement: Sikalastic®-632 R.

Substrate

Primer

Cementitious including concrete slabs

Sikalastic® Primer C / Sikalastic® U primer / Sikafloor®-161

Brick and Stone

Sikalastic® Primer C / Sikalastic® U primer / Sikafloor®-161

Ceramic tiles (unglazed)Sikalastic® Primer C / Sikalastic® U primer / Sikafloor®-161
Bituminous coatings (aged) / Bituminous felt (aged)Sikalastic® Metal Primer
Metals *Sikalastic® Metal Primer
Existing SikaRoof® MTC SystemSika® Reactivation Primer
Wooden substrates**Sikalastic® Primer C / Sika® Bonding Primer.

* Ferrous or galvanised metals, lead, copper, aluminium, brass or stainless steel; Factory coated metal sheeting must be tested for adhesion before proceeding

** Timber based roof decks require a complete layer of Sikalastic® Carrier

Pot Life

Product will cure rapidly in high temperatures combined with high air humidity. Skin formation starts after ~1 hour (+20 °C / 50 % r.h.).

Waiting Time / Overcoating

Ambient temperature

Relative humidity

Minimum

+10 °C

50 %

~12 hours

+20 °C

50 %

~6 hours

+30 °C

50 %

~3 hours

Times are approximate and will be affected by changing ambient conditions particularly temperature and relative humidity. If the overcoating time exceeds 2 days, the surface must be cleaned and primed with Sika® Reactivation Primer before continuing.

Drying time

Ambient conditions

Rain resistant *

Touch dry

Full cure

+20 °C / 55 % r.h.

2 hours

2 hours

6 hours

+30 °C / 85 % r.h.

1 hour

1 hour

3 hours

* Be aware the impact of heavy rain or rain showers can physically damage the wet applied membrane.

The initial surface tackiness of the cured Sikalastic®-632 R will disappear within 2 weeks of application.

Times are approximate and will be affected by changing ambient conditions particularly temperature and relative humidity.
Application steps

EQUIPMENT

Select the most appropriate equipment required for the project:

Application

  • Brush: Soft bristle brush
  • Roller: Solvent resistant, “non-fuzzy” roller
  • Airless spray: Pressure: 200–250 bar, nozzle dia: 0,38 mm–0,53 mm, angle: 50°–80°

For more detailed information refer to the Sika Method Statement: Sikalastic®-632 R

SUBSTRATE PREPARATION

Suitable substrates: Cementitious, brick, stone, aged bituminous coatings and felts, metals*, asbestos cement, ceramic tiles (unglazed), wood.
*Ferrous or galvanised metals, lead, copper, aluminium, brass or stainless steel, factory coated metal.

Reference must be made to the Sika® Method Statement: Sikalastic®-632 R

MIXING

Mixing is not required, however if the product has separated, stir gently by manual or mechanical equipment thoroughly to achieve a uniform colour. Stirring gently will minimise air entrainment.

APPLICATION

Strictly follow installation procedures as defined in method statements, application manuals and working instructions which must always be adjusted to the actual site conditions.

Reference must be made to the Sika® Method Statement: Sikalastic®-632 R for full application details.

CLEANING OF EQUIPMENT

Clean all tools and application equipment with Thinner C immediately after use. Hardened material can only be removed mechanically.

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