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Maxtech PU1730   Multi-purpose Black color PU Urethane Auto Glass Sealant (Primerless) Windscreen Replacement Adhesive Glue 



●PU1730 is one component of room temperature curing direct glazing polyurethane adhesive, can be used for the high strength adhesion of the glass and the body of the automobile.

With good elasticity, aging resistant, vibration exhaustion resistant, low temperature

resistant and multi-coatings paintable and easy application properties.

It is one Component, Moisture Curing Polyurethane Based Multipurpose PU Adhesive  Sealant For Auto Windscreen, & direct glazing in Automotive Glass Replacement. Maxtech PU1730 is  A Black Auto Glass Sealant (Primerless) Windscreen Replacement Polyurethane Sealant glue.

∎Key Features

●No Sagging


●Excellent thixotropy, non-sag properties

●Fast adhesion to substrates

●Cold application

●One-component formulation

●No oil permeated

●Paintable, abrasion able

●Convenient to apply

●Good aging resistance and weather resistance

High mechanical performance

High Modulus

● High initial bond strength

∎Areas of Application

● PU1730 It is designed for maintenance and sealing for auto windows, it also is used for the direction for auto windshield glass, Windshield Bonding and Car Body Repair, Car window bonding . It is especially useful in bonding windshield glass into automotive frames, also be used to  bond and seal vehicle windshields, backlights and sidelights

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∎Technical Data Table


PERPORTY                                                                                                    VALUE

Chemical base                                                                                          1-C polyurethane

Colour (Appearance)                                                                                  Black

Cure mechanism                                                                                         Moisture curing

Density (g/cm³) (GB/T 13477.2)                                                                1.4g/cm³ approx.

Non-sag properties(GB/T 13477.6)                                                            Very good

Application temperature                                                                               5°C to 35ºC

Tack-free time1 (GB/T 13477.5)                                                                  ≤60mins

Curing speed (HG/T 4363)                                                                           see diagram

Shore A hardness (GB/T 531.1)                                                                   50~60 approx.

Tensile strength (GB/T 528)                                                                         4 N/mm2 approx.

Elongation at break (GB/T 528 )                                                                    ≥400%

Tear propagation resistance (GB/T 529)                                                        ≥8.0N/mm

Extrudadbility (ml/min)                                                                                  40

Tensile-shear strength(MPa)GB/T 7124                                                        3.5 N/mm2  approx.

Service temperature                                                                                        -40°C to 90ºC

Shelf life (storage below 25°C) (CQP 016-1)                                                   9 months

∎Direction for use


Tool: Manual or pneumatic plunger caulking gun

●Cleaning: Clean and dry all surfaces by removing foreign matter and contaminants such as oil dust, grease, frost, water, dirt, old sealants and any protective coating.

●For cartridge

1.Cut nozzle to give the required angle and bead size

2.Pierce the membrane at the top of the cartridge and screw on the nozzle

3.Place the cartridge in an applicator gun and squeeze the trigger with equal strength

●For sausage

1.Clip the end of the sausage and place in barrel gun

2.Screw end cap and nozzle on to barrel gun

3.Using the trigger extrude the sealant with equal strength

●Apply Maxtech PU Sealant

 For Automotive Car Windscreen/Windshield in a continuous bead using constant pressure to apply the sealant


1.Obtain a new windshield.
2.Remove the plastic surround side and top moldings correctly.
3.Cut the urethane from the outside between the glass and the pinch weld.
4.Apply a windshield primer to the frit band.
5.Apply the urethane with an electric caulking gun.
6.Lift the windshield into place.
7.Push the window down around the frame to guarantee a tight bond.
8.Allow the urethane to dry.

∎Attention of operation
Wear suitable protective clothing, gloves, and eye/face protection. After contact with skin, wash immediately with plenty of water and soap. In case of an accident or if you feel unwell, seek medical advice immediately.

∎Packing & Delivery
Wear suitable protective clothing, gloves, and eye/face protection. After contact with skin, wash immediately with plenty of water and soap. In case of an accident or if you feel unwell, seek medical advice immediately.

∎Pallet Packing :

310ml tube: One pallet can bear 56 CTNS, 2240pcs. One 20ft Can bear 10 pallets.

600ml Sausage: One pallet can bear 42 CTNS, 1680pcs. One 20ft Can bear 10 pallets.


∎Delivery time :

Normally order, the delivery time is around 10-15days.

Samples: 2-3days.


∎Transport &Storage
* Transport: Keep the sealed product away from moisture, the sun, high temperature and avoid collisions.
* Storage: Keep the sealed product in a cool, dry place.
* Storage temperature: 5~25℃. Humidity: ≤50%RH.
* Cartridge and Sausage:9 months. Pail/Drum:6 month.

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