Product Data Sheet
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Sikafloor®-330

FLEXIBLE POLYURETHANE MEMBRANE

Sikafloor®-330 is an elastic, two part, solvent free, self leveling polyurethane resin system. Sikafloor®-330 is used as a self leveling wear course for the Sika Comfortfloor and Merflex Systems.

  • Low VOC emission
  • Solvent free
  • Flexible and resilient
  • Non shrinking after cure
  • High strength
  • Reduces footfall sound
 
Product Data Sheet
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Usage

Particularly suitable for all commercial and public buildings including healthcare facilities, schools, retail spaces, laboratories, nursing facilities, showrooms, lobbies, museums and office space. For interior use only.  

Advantages

  • Low VOC emission
  • Solvent free
  • Flexible and resilient
  • Non shrinking after cure
  • High strength
  • Reduces footfall sound
 

Packaging

Component A2.7 US gal.(10.2 L) filled in a 5 gal pail 
Component B:0.9 US gal.(3.5 L) filled in a 1 gal pail
Component A+B:3.6 US gal. (13.6 L)  
Sikafloor Epoxy Pigment Pack:1 quart per 3.6 US gal. (13.6 L)

Color

Refer to Sika Comfort floor Color Additives Selection Guide. Not UV stable, must be topcoated.

Be aware that the color of Sikafloor®-330 should be close to the color of the Sikafloor®-305 W Topcoat to ensure good hiding characteristics.

Product Details

Product Information

Shelf Life

6 months in original unopened container.

Storage Conditions

Store material in a dry, cool 50 - 86 °F (10 - 30 °C) environment.

Avoid prolonged storage at temperatures below 41 °F (5 °C) or above 86 °F (30 °C). Prolonged vibration and higher ambient temperatures during transportation can result in settling of the component A. 
Technical Information

Shore Hardness

Shore A

>80 (14 days)

ASTM D2240

at 73 °F (23 °C) and 50% R.H

Tensile Strength

1,142 psi (~ 8.0 N/mm²)

ASTM D412

at 73 °F(23 °C) and 50% R.H

Tensile Adhesion Strength

> 400 psi (concrete failure)

ASTM D7234

at 73 °F (23 °C) and 50% R.H

Tear Strength

142.75 lb./in. (~ 25 N/mm 14 days)

ASTM D624

at 73 °F (23 °C) and 50% R.H  

Chemical Resistance

Sikafloor®-330 must be sealed with Sikafloor®-305 W or another suitable Sikafloor® topcoat. For chemical resistance of the system, please consult Sikafloor® Technical Services.

Application

Application Information

Pot Life

Temperature

Time

50 °F (10 °C)

~ 21 minutes

68 °F (20 °C)

~ 15 minutes

86 °F (30 °C)~ 12 minutes

Cure Time

Before overcoating Sikafloor®-330 allow:

 

Substrate temperature

Minimum

Maximum

50 °F (10 °C)

24 hours

72 hours

68 °F (20 °C)

16 hours

48 hours

86 °F (30 °C)

16 hours

36 hours

 

Waiting / Recoat Times

Before applying Sikafloor®-330 on Sikafloor®-161 allow 6 to 24 hours @ 77 °F (25 °C). Apply Sikafloor®-330 to Sikafloor Comfort Porefiller 8 to 60 hours @ 68 °F (20 °C) after application.
Consumption

Coverage

For ComfortFloor systems, applied film thickness should be 80 - 100 mils or 16 - 20 square feet per gallon.

Theoretical coverage is 72 sq.ft per 3.61 gallon kit @ 80 mils.
Application steps

MIXING

Mix full units only.

 

Sikafloor®-330 must be thoroughly mixed using a low speed drill and jiffy blade (300 - 400 rpm). Premix the Resin A Component for a minimum of 2 minutes and check the mixture for lumps. If lumps are present, continue mixing until homogenous.

 

Add the color paste and mix again for 2 minutes. Add the complete contents of the Hardener B Component and thoroughly mix resin and hardener to a homogeneous mixture. Do not dilute.

 

Pour the mixture through a 0.5 - 1 mm sieve into a separate clean pail and mix for an additional 30 seconds to assure there is no unmixed material from the sides and bottom of the first pail present in the pour. Over mixing must be avoided to minimize air entrainment.

APPLICATION

Self-smoothing system 80 mils (2.0 mm)

This product is a continuous flooring application. It is imperative that all materials and equipment be present and in working order to ensure no lapse in the mix to mix installation.

 

To gain the maximum flow properties, the full contents of the mixture should be poured out as quickly as possible (within the potlife). Sikafloor®-330 is poured and spread evenly by means of a notched trowel, pin rake or a serrated squeegee.

 

Depending on ambient temperatures, spike roll the material between 5 and 10 minutes of spreading.

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