Product Data Sheet Show all documents

Sikafloor®-359 N

2-part PUR tough-elastic coloured seal coat

Sikafloor®-359 N is a two part tough-elastic, coloured, non-yellowing, polyurethane seal coat.

  • Tough-elastic
  • Good mechanical and chemical resistance
  • Watertight
  • Good opacity
  • Non-yellowing
  • Matt finish
  • Easy application
  • Slip resistant surface possible
 
Product Data Sheet Show all documents

Usage

  • Abrasion resistant seal coat with high mechanical resistance for broadcast systems with crack-bridging properties in industrial flooring
  • Particularly suitable for car park decks, ramps and warehouses etc.

Advantages

  • Tough-elastic
  • Good mechanical and chemical resistance
  • Watertight
  • Good opacity
  • Non-yellowing
  • Matt finish
  • Easy application
  • Slip resistant surface possible
 

Packaging

Part A

25.35 kg containers

Part B

7.15 kg containers

Part A+B

32.5 kg ready to mix units

Colour

Resin - Part A

coloured, liquid

Hardener - Part B

transparent, liquid

Please contact Sika for colour shade selection.

Product Details

Sustainability / Certifications / Approvals

ENVIRONMENTAL INFORMATION

Sikafloor®-359N is listed on the Eco-Product Directory as environmentally friendly product choice for green building initiatives. (application no.: PL-01564-2023)

APPROVALS / STANDARDS

  • Synthetic resin screed material according to EN 13813:2002, Declaration of Performance 02080104002500000011008, certified by notified factory production control certification body 0921, and provided with the CE marking.
  • Coating for surface protection of concrete according to EN 1504-2:2004, Declaration of Performance 02080104002500000011008, certified by notified factory production control certification body 0921, and provided with the CE marking.
  • Certified as part of the Surface Protection System OS 11a according to DIN EN 1504-2 and DIN V 18026.
  • Certified as part of the Surface Protection System OS 11b according to DIN EN 1504-2 and DIN V 18026.
Product Information

Chemical Base

Polyurethane

Shelf Life

12 months from date of production

Storage Conditions

The product must be stored properly in original, unopened and undamaged sealed packaging, in dry conditions. Protect from direct sunlight.

Density

Part A

~ 1.67 kg/litre

Part B

~ 1.05 kg/litre

Mixed resin

~ 1.45 kg/litre

All Density values at +23 °C

Solid Content by Weight

~ 85 %

Solid Content by Volume

~ 85 %
Technical Information

Shore D Hardness

~ 52 (7 days / +23 °C)

(DIN 53 505)

Abrasion Resistance

160 mg (CS 10/1000/1000) (7 days / +23 °C)

(DIN 53 505)

Tensile Adhesion Strength

> 1.5 N/mm2 (failure in concrete)

(EN 13892-8)

Chemical Resistance

Resistant to many chemicals. Contact Sika technical service for specific information.

Application

Application Information

Mixing Ratio

Part A : Part B = 78 : 22  (by weight)

Ambient Air Temperature

+10 °C min. / +30 °C max.

Relative Air Humidity

80 % r.h. max.

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).

Pot Life

Temperature

Time

+10 °C

~ 40 minutes

+20 °C

~ 25 minutes

+30 °C~ 15 minutes

Curing Time

Before applying Sikafloor®-359 N on Sikafloor®-375/ -350 N/ -326/ -261  broadcast allow:

Substrate temperature

Minimum

Maximum

+10 °C

24 hours

*

+20 °C

12 hours

*

+30 °C

6 hours

*

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

* Not applicable as the product will be applied on the structured surface provided by the quartz sand.

Applied Product Ready for Use

Temperature

Foot traffic

Light traffic

Full cure

+10 °C

~ 48 hours

~ 5 days

~ 10 days

+20 °C

~ 24 hours

~ 3 days

~ 7 days

+30 °C

~ 16 hours

~ 2 days

~ 3 days

Note: Times are approximate and will be affected by changing ambient conditions
Consumption

Consumption

~ 0.7–0.9 kg/m2/layer. Please refer to the respective System Data Sheet.
Application steps

MIXING

Prior to mixing, stir part A mechanically. When all of part B has been added to part A, mix continuously for 2 minutes until a uniform mix has been achieved.
 

For the addition of quartz sand: When parts A and B have been mixed, add the quartz sand 0.1–0.3 mm and mix for a further 2 minutes until a uniform mix has been achieved. To ensure thorough mixing pour materials into another container and mix again to achieve a consistent mix. Over mixing must be avoided to minimise air entrainment.

Mixing Tools:

Sikafloor®-359 N 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 seal coat, the product can be applied by squeegee and then back-rolled (crosswise) with a short-piled roller.

 

CLEANING OF TOOLS

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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