Product Data Sheet Show all documents

Sikalastic® M 800

TWO COMPONENT, PIGMENTED, ELASTIC, HIGHLY REACTIVE, SPRAY APPLIED (MACHINE APPLICATION) WATERPROOFING MEMBRANE WITH SHORT CURING TIME

Sikalastic® M 800 is a two component, waterproofing membrane. It is highly reactive and can only be applied by special, two component spray equipment. Sikalastic® M 800 has been in use since 1985 and forms the basis of a number of approval certificates for various waterproofing applications world-wide.

  • Long track record (since 1985)
  • Fast reacting
  • High build capability
  • Application to vertical surface without runs
  • Easy application to complicated details
  • Fast installation
  • Monolithic – no laps, welds or seams
  • Fully bonded
  • High water vapour permeability – low risk of blistering
 
  • Excellent mechanical properties
  • Excellent crack bridging capability
  • Resistant to puncture
  • Resistant to standing water
  • Thermoset – does not soften at elevated temperatures
  • Withstands the high temperatures during laying of hot poured asphalt (approx. 240 °C)
  • Remains elastic at low temperatures; Tg approx -45 °C
  • Solvent free
Sikalastic® M 800 features high elasticity, excellent tensile strength and elongation and a good wear resistance. This highly reactive waterproofing membrane allows its installation on vertical surfaces without problem. Moreover this fast-curing membrane can be re-coated within a few hours.
Product Data Sheet Show all documents

Usage

Sikalastic® M 800 is used in a wide range of waterproofing applications such as bridge deck waterproofing, car park decks, podium decks, cut and cover tunnelling and basement waterproofing. It is also used in some secondary containment applications. Using the appropriate primer, Sikalastic® M 800 can be applied to most substrates including concrete, steel, bitumen cement screed, glass reinforced polyester, timber etc.

Advantages

  • Long track record (since 1985)
  • Fast reacting
  • High build capability
  • Application to vertical surface without runs
  • Easy application to complicated details
  • Fast installation
  • Monolithic – no laps, welds or seams
  • Fully bonded
  • High water vapour permeability – low risk of blistering
 
  • Excellent mechanical properties
  • Excellent crack bridging capability
  • Resistant to puncture
  • Resistant to standing water
  • Thermoset – does not soften at elevated temperatures
  • Withstands the high temperatures during laying of hot poured asphalt (approx. 240 °C)
  • Remains elastic at low temperatures; Tg approx -45 °C
  • Solvent free
Sikalastic® M 800 features high elasticity, excellent tensile strength and elongation and a good wear resistance. This highly reactive waterproofing membrane allows its installation on vertical surfaces without problem. Moreover this fast-curing membrane can be re-coated within a few hours.

Packaging

Part A

210 kg drum

Part B

220 kg drum (Red)

Colour

Part A

liquid / grey

Part B

liquid / clear

UV light exposure may lead to yellowing

Product Details

Sustainability / Certifications / Approvals

APPROVALS / STANDARDS

  • CE Marking and Declaration of Performance to EN 1504-2 - Surface protection product for concrete - Coating

  • Singapore Green Building Product (Leader) Cert. No. SGBP 5953

 
Product Information

Chemical Base

Polyurethane

Shelf Life

Part A: 18 months from date of production Part B: 12 months from date of production

Storage Conditions

The product must be stored in original, unopened and undamaged packaging in dry conditions at temperatures between +15 °C and +25 °C. Do not expose to direct sunlight. Always refer to packaging.

Density

Part A

1.06 g/cm3

Part B

1.08 g/cm3

Values at + 23 °C

Product Declaration

EN 1504-2: Surface protection product for concrete - Coating

Viscosity

Part A

2,400 mPas

Part B

1,800 mPas

Values at + 23 °C
Technical Information

Shore A Hardness

~ 80

(DIN 53505)

Tensile Strength

~ 10 N/mm2

(DIN 53504)

Tear Strength

18 N/mm2

(DIN 53515)

Application

Application Information

Mixing Ratio

Part A : Part B = 100 : 70 (by volume)

Ambient Air Temperature

+ 5 °C min. / + 35 °C max.

Relative Air Humidity

< 85 %

Substrate Temperature

+ 5 °C min. / + 35 °C max.

Curing Time

Final cure ~24 hours at +23 °C Time is approximate and will be affected by changing ambient conditions particularly temperature and relative humidity.

Gel time

~ 10 seconds at + 20 °C
Application steps

EQUIPMENT

Reference must be made to the Sika® Method Statement: Sikalastic® M 800

SUBSTRATE QUALITY

Reference must be made to the Sika® Method Statement: Sikalastic® M 800

SUBSTRATE PREPARATION

Reference must be made to the Sika® Method Statement: Sikalastic® M 800

MIXING

Reference must be made to the Sika® Method Statement: Sikalastic® M 800

Note: Both components must be heated up to + 70 °C. The accuracy of mixing and dosage must be controlled regularly with the spray equipment. Thoroughly stir Part A (Amine) using a drum stirrer until a uniform consistent colour is obtained.

APPLICATION

Follow the application procedures outlined in the Sika® Method Statement: Sikalastic® M 800, as well as relevant manuals and site-specific working instructions. Always adjust procedures to suit actual site conditions.

Before application, confirm that substrate moisture content, ambient and substrate temperatures, relative humidity, dew point, and product temperature are all within the specified limits. These checks are essential to ensure proper adhesion and performance.

CLEANING OF TOOLS

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

 

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