Product Data Sheet Safety Data Sheet Show all documents

Sikafloor®-400 N Elastic

Sikafloor-400 N Elastic is a one-component, UV resistant, highly elastic, moisture curing                  polyurethane waterproof membrane.

Sikafloor®-400 N Elastic is a one part, highly elastic, solvent containing, UV resistant, coloured, moisture curing polyurethane resin coating.

  • Highly elastic
  • Crack-bridging
  • Waterproof
  • UV resistant, non-yellowing
  • Weather resistant
  • Abrasion resistant with normal use
  • Slip resistant surfaces are possible
Product Data Sheet Safety Data Sheet Show all documents

Usage

Sikafloor®-400 N Elastic is used for:
  • Exposed roof decks terraces, gutters, flashings,  walls
  • Balconies
  • Light to medium mechanical exposure
  • Heavy foot traffic
  • Footbridges, stairways etc.
  • Podium Decks
 

Advantages

  • Highly elastic
  • Crack-bridging
  • Waterproof
  • UV resistant, non-yellowing
  • Weather resistant
  • Abrasion resistant with normal use
  • Slip resistant surfaces are possible

Packaging

18 kg units - 11.25 litres

Colour

Standard colours in stock: Stone Grey RAL 7030, Koala Grey N45, Light Grey RAL 7035

Other colours availble upon request on a Made To Order basis: Grey White RAL 9002, Slate Grey RAL 7015, Dusty Grey RAL 7037, Window Grey RAL 7040, Traffic White RAL 9016, Dahlia Yellow RAL 1033. Please speak to us for other colours.

Product Details

Sustainability / Certifications / Approvals

APPROVALS / CERTIFICATES

  • BRANZ Test Report: DC11037-001: AS4654.1 2012: Meets requirements as a Class II Membrane: Heavy Duty System
  • Synthetic resin screed material for floor screeds according to EN 13813:2002, Declaration of Performance 0208050100100000011008, certified by notified factory production control body 0921 and provided with the CE mark
  • Coating for concrete protection according to EN 1504-2:2004, Declaration of Performance 0208050100100000011008, certified by notified factory production control body 0921 and provided with the CE mark
  • Approval for “Ground Water Protection System”, Z-59.12-4, DIBt, Germany, July 2008.
Product Information

Composition

Polyurethane

Shelf life

9 months from date of production

Storage conditions

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

Density

~ 1.6 kg/l

(DIN EN ISO 2811-1)

Solid content by mass

~ 88 %

Solid content by volume

~ 77 %
Technical Information

Abrasion resistance

30 mg (CS 10/1000/1000)

(8 days / +23 °C)

Temperature resistance

Exposure*Dry heat

Permanent

+50 °C

Short-term max. 7d

+80 °C

Short-term max. 8h

+100 °C

*No simultaneous chemical and mechanical exposure.

Chemical resistance

Resistant to many chemicals. Contact Sika technical service.
Attention: Wine, coffee, some leaves and flower petals etc. may cause surface discolouration. This will have no effect on the product performance and durability.

Application

Application Information

Ambient air temperature

+10 °C min. / +30 °C max.

Relative air humidity

80 % r.h. max.
35 % min. (below +20 °C: 45 % min.)

Dew point

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

Substrate temperature

+10 °C min. / +30 °C max.

 

Substrate moisture content

< 4 % pbw moisture content.
Test method: Sika®-Tramex meter, CM - measurement or Oven-dry-method.
No rising moisture according to ASTM (Polyethylene sheet).

Use Sikafloor 161 for moisture to 6%pbw

Pot Life

The material in opened containers should be applied immediately. With open containers surface film formation will happen within 1-2 hours. High temperatures and high air humidity will accelerate curing significantly.

Curing time

Before overcoating Sikafloor®-400 N Elastic allow:

Substrate temperature

Minimum

Maximum

+10 °C

36 hours

5 days

+20 °C

24 hours

3 days

+30 °C

16 hours

2 days

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

Applied product ready for use

Temperature (r.h. 50%)

Rain resistant

Foot traffic

Full cure

+10 °C

~15 hours

~1 - 2 days*

~7 - 14 days*

+20 °C

~5 hours

~6 - 24 hours*

~5 - 9 days*

+30 °C

~3 hours

~4 - 18 hours*

~3 - 5 days*

 *Strongly influenced by layer thickness
Note: Times are approximate and will be affected by changing ambient conditions
Application steps

MIXING

Prior to use stir Sikafloor®-400 N Elastic mechanically for 3 minutes. If required the Thinner C or Extender T should be added into the Sikafloor®-400 N Elastic until a uniform mix has been achieved. Over mixing must be avoided to minimise air entrainment.

 

Mixing Tools:

Sikafloor®-400 N Elastic must be thoroughly mixed using a low speed electric stirrer (300 - 400 rpm) or other suitable equipment.

APPLICATION

Prior to application, confirm substrate moisture content, relative humidity and dew point.
As a primer Sikafloor®-400 N Elastic is diluted by 10% with Thinner C, applied by brush, roller or squeegee and as a coating Sikafloor®-400 N Elastic is poured and spread evenly with a trowel.

CLEANING OF EQUIPMENT

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

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