Product Data Sheet Safety Data Sheet Show all documents

Sikaflex® Primer-260

SURFACE CONDITIONERS AND ADHESION PROMOTERS FOR Sikaflex® SEALANTS

Sikaflex® primers are specially formulated to be used on specific substrates with Sikaflex® polyurethane sealants. Most substrates require a primer only if testing shows need and where the sealant will be underwater after cure. Some substrates do require a primer under all conditions.     Sikaflex® Primer-260 is a dual-purpose clear, almost colourless primer. It is used for promoting adhesion of polyurethane sealants to various metallic, non-metallic and glass substrates.  

  • One-component primer packaged in 473 mL (16 US fl. oz) tin, ready-to-use
  • Easily applied by brush, dauber or spray
Product Data Sheet Safety Data Sheet Show all documents

Usage

Most substrates require a primer only if testing shows need for it or where the sealant will be underwater after cure. Certain substrates do require a primer under all conditions.

Advantages

  • One-component primer packaged in 473 mL (16 US fl. oz) tin, ready-to-use
  • Easily applied by brush, dauber or spray

Packaging

473 mL tin (16 US fl. oz), 6/case

Colour

Clear (almost colourless)

Product Details

Product Information

Shelf Life

Six (6) months in original, unopened package.

Storage Conditions

Store dry at temperatures between 5 and 32 °C (41 and 89 °F). Condition product to temperatures between 18 and 27 °C (65 and 81 °F) before using.

Density

Specific Gravity: 0.8

Volatile organic compound (VOC) content

879 g/L

Viscosity

NO.2 Zahn (sec.)

12 - 16

Brookfield, MPa.s (cps)

-

 

Application

Consumption

Yield

90 - 150 (295 - 490)

13 x 13 mm (1/2 x 1/2 in) joint

5 - 8 (203 - 325)

Coverage m2/L (ft2/US gal.) (approx.)
Application steps

APPLICATION INSTRUCTIONS

Substrate

Primer Required

Recommended Primer

Marble

No

260

Siliconized Polyester

Yes

260

Alucobond

Yes

260

LexanYes260
TeflonNo Bond Achieved
PolyethyleneNo Bond Achieved
PolypropyleneNo Bond Achieved
Glass - Sheet, float or plateNo260
PorcelainNo260
Ceramic tileNo260
Aluminium - AnodizedNo260
Aluminium - Mill FinishYes260
LeadNo260
Copper (bright/clean)No260
BrassNo260
ZincNo260
TinplateNo260
Steel (Bright/Clean)No260
Steel - StainlessYes260
Steel - GalvanizedYes260
 

SUBSTRATE PREPARATION

The key to good adhesion with Sikaflex® sealants is surface preparation. Specifically, all surfaces must be dry and free of dirt, grease, form release agent, loose mortar, laitance and any foreign matter. If the joint contains old sealant, it must be removed and the substrate cleaned by mechanical means. Apply primers at substrate temperatures of 4 °C (39 °F) and rising. Surface must be frost-free.

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