Product Data Sheet Show all documents

Sikafloor® PurCem® HM-20

High strength-trowel grade, heavy duty polyurethane cement hybrid flooring system

Sikafloor® PurCem® HM-20 is made with polyurethane cement technology and is part of the Sikafloor® PurCem® flooring range. Sikafloor® PurCem® HM-20 is a trowel applied coloured modified polyurethane mortar screed resin suitable for floors subject to heavy loading, abrasion and chemical exposure.
It has a textured aggregate surface providing medium to heavy profile slip resistance and is typically installed at 6 to 9 mm thick. Suitable for use in hot and tropical climatic conditions.

  • High chemical resistance. Resists a wide range of organic and inorganic acids, alkalis, amines, salts and solvents
  • Good resistance to fire
  • Steam cleanable at 9 mm thick
  • High mechanical and abrasion resistance
  • Easy application. Normally, no concrete primer or sealer required
  • Fluid consistency requires less labour to install than conventional heavy duty modified PU trowel grade screeds
  • Easy to clean and maintain
  • Seamless, non-taint, odourless
  • Smooth, matt surface
  • Tolerant to moisture in the substrate
  • Very good life cycle cost performance
 
Product Data Sheet Show all documents

Usage

  • Food processing plants, in wet or dry process areas, freezers and coolers, thermal shock areas
  • Chemical plants
  • Laboratories
  • Workshops

Advantages

  • High chemical resistance. Resists a wide range of organic and inorganic acids, alkalis, amines, salts and solvents
  • Good resistance to fire
  • Steam cleanable at 9 mm thick
  • High mechanical and abrasion resistance
  • Easy application. Normally, no concrete primer or sealer required
  • Fluid consistency requires less labour to install than conventional heavy duty modified PU trowel grade screeds
  • Easy to clean and maintain
  • Seamless, non-taint, odourless
  • Smooth, matt surface
  • Tolerant to moisture in the substrate
  • Very good life cycle cost performance
 

Packaging

Please refer to the individual Product Data Sheet

Colour

Beige, maize yellow, oxide red, grass green, dusty grey, slate grey, traffic grey

Appearance

Textured surface, matt finish

System Details

Sustainability / Certifications / Approvals

APPROVALS / CERTIFICATES

  • Certified as suitable for use in food and beverage facilities that operate in accordance with a HACCP based Food Safety Programme.
  • Compliant with USDA flooring requirements
  • Canadian Food Inspection Agency acceptance for use in food plants in Canada.
  • British Standards Specifications (BSS) acceptance for use in the UK. Campden and Chorleywood Food Research Association, Reference S/REP/125424/1a and 2a, dated 8th February, 2012
System information

Shelf life

Please refer to the individual Product Data Sheet

Storage conditions

Please refer to the individual Product Data Sheet

System Structure

Sikafloor® PurCem® HM-20

  02-en-PurCem_2_ltex_m-1000

Layer

Product

1. Scratch coat (optional)

Sikafloor® -21 PurCem® (AE)

+ Quartzsand 0.4 - 0.8 mm light broadcast

2. Body coat

Sikafloor®-20 PurCem® (AE)

As optional primers Sikafloor®-161 + quartz sand 0.4 - 0.8 mm broadcast to excess can be used. Please refer to the individual Product Data Sheet.

Composition

Water-based polyurethane cement hybrid

Nominal Thickness

~6 - 9 mm

Volatile organic compound (VOC) content

Very low content of volatile organic compounds, it fulfils the stringent demands for indoor air quality and low VOC emitting products AgBB.

 
Technical Information

Shore D Hardness

~80-85

(ASTM D 2240)

Abrasion Resistance

Class “Special” Severe abrasion resistance

AR 0.5

Class A6

<  3000 mg (H-22 / 1000 / 1000)

Resistance to Impact

Class III (≥ 20 Nm)

2 pounds / 30 inches (3 mm thick)

Compressive Strength

> 40 N/mm2 (28 d / +23 °C / 50 % r.h.)

>  40 N/mm2 (after 28 d / +23 °C / 50 % r.h.)

Tensile Adhesion Strength

Concrete failure

(EN1542)

Reaction to Fire

Bfl-s1

(EN 13501-1)

Chemical Resistance

Please refer to Sikafloor® PurCem® chemical resistance guide. Contact Sika technical service for specific information.

Temperature Resistance

6 mm

9 mm

-25 °C to +80 °C

-40 °C to +120 °C

Sikafloor® PurCem® HM-20 is fully resistant to liquid spillage and discharge. Sikafloor® PurCem® HM-20 is designed to withstand thermal shock caused by steam cleaning when thickness is 9 mm.

Permeability to Water Vapour

0.148 g / h / m2 (6.1 mm)

(ASTM E-96)

Application

Application Information

Applied Product Ready for Use

Temperature

Foot traffic

Light traffic

Full cure

+10 °C~24 h~36 h~7 d
+20 °C~12 h~18 h~5 d
+30 °C~8 h~15 h~3 - 4 d

Note: Times are approximate and will be affected by changing ambient conditions and substrate conditions
Application consumption

Consumption

Layer

Product

Consumption

1. Scratch coat (optional)

Sikafloor®-21 PurCem® (AE)

+ Quartzsand 0.4 - 0.8 mm light broadcast

~2.9 kg/m2 (1.5 mm)

~2.0 - 2.5 kg/m2

2. Body coat

Sikafloor®-20 PurCem® (AE)

~2.0 kg/m2/mm

Consumptions are theoretical and do not include any wastage, additional material need due to porosity, substrate profile etc.
Application steps

CLEANING

Please refer to Sikafloor®- Cleaning Regime.

Documents