Product Data Sheet Show all documents

Sikafloor®-359 SG

2-part PUR Tough-elastic Coloured Seal Coat

Sikafloor®-359 SG is a two part tough-elastic, coloured, UV resistant, non-yellowing, polyurethane seal coat for smooth and broadcasted finishes.
Suitable for use in hot and tropical climatic conditions.

  • Tough-elastic
  • UV resistant
  • Good mechanical and chemical resistance
  • Watertight
  • Non-yellowing
  • Easy application
  • Slip resistant surface possible
  • Easy to clean and maintain
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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
  • UV resistant
  • Good mechanical and chemical resistance
  • Watertight
  • Non-yellowing
  • Easy application
  • Slip resistant surface possible
  • Easy to clean and maintain

Packaging

Part A: 16.5 kg containers
Part B: 3.5 kg containers
Part A + B: 20.0 kg ready to mix units

Colour

Resin - Part A: Coloured liquid
Hardener - Part B: Transparent liquid
Check local standard colour range

Product Details

Sustainability / Certifications / Approvals

APPROVALS / STANDARDS

SRI tested in accordance ASTM E 1980.01 Material Laboratory
Product Information

Chemical Base

Polyurethane

Shelf Life

12 months minimum from date of production if stored properly in original, unopened and undamaged sealed packaging

Storage Conditions

Store in dry conditions in original sealed packaging and at temperatures between +5 °C and +35 °C.

Density

Mixed resin: ~1.25 kg/l (25 °C), may vary with colour

Solid content by weight

~65 % 

 
Technical Information

Shore D Hardness

52 (7 d / 23 °C)

(DIN 53 505)

Abrasion Resistance

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

(DIN 53 109)

Chemical Resistance

Resistant against many chemicals. Please ask for a detailed chemical resistance table.

Thermal Resistance

Exposure*

Dry heat

Permanent

+50 °C

Short-term max. 7 d

+80 °C

Short-term max. 4 h+100 °C

Short-term moist / wet heat* up to +80 °C where exposure is only occasional (high pressure water jetting etc.)
*No simultaneous chemical and mechanical exposure.

Application

Application Information

Mixing Ratio

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

Ambient Air Temperature

+10 °C min. / +35 °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. / +35 °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 min
+20 °C~25 min
+30 °C~15 min

Curing Time

Before applying Sikafloor®-359 SG on Sikafloor®-325 or -264 broadcast allow:

Substrate temperature

Minimum

Maximum

+10 °C

36 h

*

+20 °C

24 h

*
+30 °C16 h*

* No maximum waiting time if fully broadcast surface is free from all contaminations.
Times are approximate and will be affected by changing ambient conditions particularly temperature and relative humidity.

Applied Product Ready for Use

Temperature

Foot Traffic

Light Traffic

Full cure

+10 °C

~48 h

~5 d

~10 d

+20 °C

~24 h

~3 d

~7 d

+30 °C~16 h~2 d~3 d

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

Consumption

UV stable broadcast epoxy coating system:

Coating SystemProductConsumption
PrimerSikafloor®-161~0.2 - 0.5 kg/m2
BroadcastingBroadcast to excess with quartz sand 0.3 - 0.8 mm or / 0.7 - 1.2 mm~0.6 - 1.0 kg/m2
Base coatSikafloor®- 264 SG~0.3 - 0.5 kg/m2
Seal CoatSikafloor®-359 SG~0.2 - 0.35 kg/m2

UV stable Broadcast elastic polyurethane screed:

Coating SystemProductConsumption
PrimerSikafloor®-161~0.2 - 0.5 kg/m2

Broadcasting

Broadcast to excess with quartz sand 0.3 - 0.8 mm or 0.7 - 1.2 mm~0.6 - 1.2 kg/m2
Base coatSikafloor®-325 or Sikafloor®-3240~0.5 - 1.5 kg/m2
Seal coatSikafloor®-359 SG~0.25 - 0.5 kg/m2

*For exposed areas the use of Sikafloor®-359 SG as a seal coat is mandatory.
These figures are theoretical and do not allow for any additional material due to application technique, surface porosity, surface profile, variations in level and wastage etc.
Application steps

MIXING

Mix full kits only. Prior to mixing, stir part A mechanically. When all of part B has been added to part A, mix continuously for 3 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 SG must be thoroughly mixed using a low speed electric stirrer (300 to 400 rpm) or other suitable equipment.

 

APPLICATION

Prior to application, confirm substrate moisture content, relative humidity and dew point.
Seal coat: Sealer coats can be applied by squeegee and then back-rolled (crosswise) with a short-piled roller.

For detailed information regarding application please refer to the method statement.

CLEANING OF TOOLS

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

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