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AE PU 25

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Product Description

Drinking water approved PU Sealant 

PU 25, imported from Europe ,  is a one-component, medium-modulus polyurethane sealant that cures on exposure to atmospheric humidity. It possesses excellent adhesion to all typical construction materials such as cement based materials, brick, ceramic, glass, wood, galvanized and painted sheet iron and various plastics.

PROPERTIES

• Possesses permanent elasticity

• No sagging – Thixotropic

• No surface tackiness after full cure. Do not pick up dirt

• No shrinkage

• Can be applied with hand gun and tooled easily

• Paintable

• Conforms to BS 6920 for the metallic water soluble impurities and is suitable for use in drinking water system

Conforms to the requirements of VOC content specifications in LEED credit EQc4.1 “Low-emitting products” of SCAQMD rule 1168

 

APPLICATIONS

        •   Used for bonding various construction materials and as sealing joint

  • metal to metal bonding for automotive , bus body, trailers etc

PU 25 is low modulus one-component moisture curing Class A polyurethane sealant. It cures into a flexible, durable and weather resistant elastomeric sealant that has very good adhesion to most construction and industrial materials. It can accommodate cyclic joint movement of 50% (+/-25%) of the joint width.

Recommended for use in moving expansion joints between precast concrete panels, brick and block work, granite, marble and sandstone, aluminum windows, FRP, metal, coated metal curtain walls and seams on timber, aluminum, U-PVC joinery, etc,.
PU 25 can be used for bonding or sealing lap seams on trucks, bus, trains, trailers, roofs vans,RV’s specialty vehicles and constructions panels.

Consumption (approx.) Table 1

Joint width

15 mm

20 mm

25 mm

30 mm

35 mm

Joint Depth

8 mm

10 mm

12 mm

15 mm

15 mm

Joint length /600 ml

5 meters

3 meters

2 meters

1,3 meters

1,1 meters

 

 

SIRET : 799 732 292 00013

1/2

 

STORAGE AND SHELF LIFE

12 months if stored in its original package, away from direct sunlight and moisture, between +10 ?C and +25 ?C.

 

TECHNICAL PROPERTIES BEFORE CURING

Basis

: Polyurethane

Consistency

: Thixotropic

Curing Mechanism

: Moisture Curing

Density

: 1,20±0,03 g/ml

Tack free time

: 60 ±10 min (23°C and 50% R.H)

Curing Rate

: Min. 2 mm/day (23°C and 50% R.H)

Sagging                                                

                               : 0 mm

(EN ISO 7390)

Temperature Resistance

: -40°C to +70°C

Application Temperature

: +5°C to +40°C

AFTER CURING

Hardness Shore A

                               :40 ± 5

After 28 days (ISO 868)

Paintibility

: Yes *

Elastic Recovery

                               : ≥ 70%

(ISO 7389)

 

 

 

 

Movement Capability                   : 35%

 

 

 

Elongation at break

: min.120%

(ISO8339)

E100 Modulus (23 ?C)

: 0.30-0.40 N/mm2

(ISO8339)

E100 Modulus (-20 ?C)

: ≤ 0,60 N/mm2

(ISO8339)

Elongation at break

: ≥%400

(ISO 37)

Tensile Strength

:2-2,5 N/mm2

(ISO 37)

 

Imported from Europe .