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Maxtech Self-Leveling Expansion Joint Sealant PU-310


Product Description

PU-310 is an elastomeric, one-component, self-leveling, non-bubbling, premium-grade polyurethane sealant specifically developed to be used as a multi-purpose horizontal joint sealant. The product is a moisture cure sealant with excellent adhesive properties and resistance to aging and weathering.


Key Features

1.Odorless, Eco-friendly, No Harm to the Builder

2.Excellent Waterproof, Best Sealing, Bright Color

3.Resistant to Oil, Acid, Alkali , Puncture, Chemical Corrosion

4.Single Component, Self-leveling, Easy to Use, Convenient Operation

5.800+ Elongation, Super-bonding without Crack

Resistance to Tear, Puncture, Abrasion


Typical Applications

1.Bonding and sealing for the gap of joints of road, airport runway, square, wall pipe, wharf, roof, underground garage and basement.

2. Sealing for leakage of oil refinery and chemical plant.

3. Bonding and sealing for industrial floors, such as epoxy floor and all kinds of

paint surface.

4. Excellent bonding, sealing and repairing of various kinds of materials, such as

concrete building, wood, metal, PVC, ceramics, carbon fiber, glass, etc.


Packing Specification

Bag         500ml

●Sausage      600ml

●Pail/Drum     20kg/drum, 230kg/drum

20pcs per box; 20kg pail, 36 pails per pallet


Directions for Use

 Cleaning: The substrate surface must be solid, dry and be clean.Such as no dust, grease, asphalt, tar, paint, wax, rust, water repellent, curing agent, isolating agent and film. Surface cleaning can be dealt with by removing, cutting, grinding, cleaning, blowing, and so on.

 Operation: Put the sealant into the operating tool,then injecting it into the gap.

 Reservation gap: The construction joint will expand as the temperature change,so the surface of the sealant should be lower than 2mm of the pavement after construction.

 About maintenance time: At the standard state, the maintenance time is about 5 hours. It depends on the actual construction conditions. The standard state is that the temperature is 23±2,and the humidity is 55 ± 5%RH.

 Operation Methods: Because the packing is different, the construction methods and tools are slightly different. The specific construction method.


Attention of operation

 Dont mix alcohol into the product, it will cause the product invalid. The tools with the alcohol cant be used before cleaning well.

 Avoid contact with eyes and skin. If contact with your skin, scrub first with soap water or alcohol, then rinse with water. 

 It is forbidden to build on the surface of the wet substrate.

Transportation: Avoid damp, high temperature, isolation and rain, far away from heat, handle with care and prohibit extrusion collision.

 Tools Cleaning: It can be soaked in toluene or xylene. It is strictly forbidden to immerse in alcohol and other alcohol solvents.

Transport &Storage

● Transport: Keep the sealed product away from moisture, the sun, high temperature and avoid collisions.

Storage: Keep the sealed product in cool, dry place.

Storage temperature: 5~25℃. Humidity: ≤50%RH.

Cartridge and Sausage:9 month. Pail/Drum:6 month.

Notice:If the temperature is higher than 40  or the humidity is more than 80%RH, the shelf life may be shorter.

Self-Leveling Expansion Joint Sealant

$2.35 Regular Price
$2.30Sale Price
1 Kilogram
Color: Gray




    Visual inspection

    Grey Uniform Sticky Liquid

    Uniform Sticky Liquid

    Tack Free Time



    Adhesion Elongation




    Shore A


    Resilience Rate



    Curing Speed


    3  5

    Elongation at Break



    Solid Content



    Operation Temperature



    Service Temperature



    Shelf life



    Note:All data above were tested under special condition (7 days after full cured).

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