Product Data Sheet Show all documents

Sikafloor® M 866

(former MSeal M 866)

A tough elastic two component polyurethane membrane

Sikafloor® M 866 is a two-component solvent free polyurethane coating suitable for use in traffic coating and roofing systems to provide crack bridging and waterproofing capability. When used in car park decking and roofing systems it will bridge dynamic cracks.

  • Tough
  • Elastic
  • Aggregate scatter does not sink through the wet coat
Product Data Sheet Show all documents

Usage

Sikafloor® M 866 is used primarily as a durable elastic membrane in polyurethane coating systems for car parks and roofs.  

Advantages

  • Tough
  • Elastic
  • Aggregate scatter does not sink through the wet coat

Packaging

Sikafloor® M 866 is supplied in 25 kg units.

Product Details

Sustainability / Certifications / Approvals

CERTIFICATES AND TEST REPORTS

ASTM C957
Product Information

Shelf life

The shelf life is 6 months in unopened containers in cool and dry conditions.

Storage conditions

Store under cover out of direct sunlight and protect from extremes of temperature. In tropical climates the product must be stored in an air conditioned environment. Failure to comply with the recommended storage conditions may result in premature deterioration of the product or packaging.
Technical Information

Tensile strength

6 N/mm²

Application

Application Information

Substrate temperature

Application temperature

The quality of the final finish is dependent on the substrate and the material temperatures, we recommend a substrate temperature of min. +10°C and max. +35°C.

Pot Life

45 min at 25°C
Application steps

SUBSTRATE PREPARATION

The surface to be coated must be clean, dry free of laitance, oil, grease or any substance that may impair adhesion. The prefered method of surface preparation are; captive blasting, surface grinding or similar. Weak or damaged concrete must be removed, then replaced with a suitable repair compound from the SikaEmaco® or Sikadur® range of products. Surface conditioning / priming The prepared surface must be conditioned to receive the Sikafloor® M 866 by the application of Sikafloor® P 650 or Sikafloor® P 651.

MIXING

Mix the PTA and PTB components of the Sikafloor® M 866 together using a slow speed (400 rpm) drill with a spiral mixing head. Work the mixer round the mixing pail to ensure it scrapes the side and bottom of the pail. Pour the part mixed material into a clean pail and re-mix for a further 30 seconds.

 

APPLICATION

Car Park Applications:

For specific details and system build-up please refer to the relevant method statement and technical data for Sikafloor® Multiflex Traffic 1332 and Sikafloor® MultiflexTraffic 1342.

Roof Applications:

For specific details and system build-up please refer to the relevant method statement and technical data for Sikalastic® Roof 2166.

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