J-340A Construction Sealant
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J-340A Construction Sealant

Place of Origin: China
Brand Name: OEM
Certification: GB/T 13477.2, GB/T 13477.4, GB/T 13477.5, GB/T 13477.6, HG/T 4363, GB/T 2793, GB/T 531.1, GB/T 528, GB/T 7124
Model Number: J-340A
Packaging Details: 400ml, 600ml
Delivery Time: 20-30days
Payment Terms: T/T, L/C

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Product Specifications

Testing ItemsTypical Value
AppearanceBlack White Gray Beige
Density (g/cm³)1.46
Sagging properties (mm)0
Tack free time (min)65
Curing speed (mm/d)3.0
Volatile content (%)1
ShoreA-hardness (A°)35
Tensile strength (Mpa)2.5
Elongation at break (%)615
Elastic Recovery Rate%75
Extrudability (ml/ min)300

J-340A is one-component, moisture curable polyurethane sealant. Good sealing and flexible performance.
No corrosion and pollution to base material and environment-friendly. Pricking resistance, easy for repairing. Good bonding performance with cement and stone.Low modulus, good anti-water pressure performance.

Product Features

  • One-component, excellent extrusion, no-sag, easy construction.
  • Low modulus, 20LM, high movement-resistance.

Areas of Application

Suitable for sealing joints and interior walls of underground tunnels, bridge tunnels, drainage pipes, sewage pipes, epoxy floors, concrete, etc.
Suitable for sealing various holes on walls and floors.

Packing Specification

  • Cartridge: 310ml; 12pcs/20pcs/24pcs per carton
  • Sausage: 400ml/600ml; 20pcs per carton
  • Barrel: 200L/250KGS

 

Choosing J-340A for your application

Start with the joint movement, substrate and exposure conditions. J-340A is listed as low modulus; J-340B and J-340H are listed as high modulus. Ask our team to confirm the differences between J-340B and J-340H for your project.

ModelListed application focus
J-340ALow-modulus construction sealant; tunnel, pipe, concrete and floor joints
J-340BHigh-modulus construction sealant; low-movement joints, precast panels, concrete and stone
J-340HHigh-modulus construction sealant; low-movement joints, precast panels, concrete and stone

Request J-340A samples and a quotation

Include the following details in your enquiry:

  • The substrates and any paint, coating or surface treatment.
  • Joint or bead dimensions, expected movement and installation conditions.
  • The package size, estimated order quantity and OEM packaging requirements.
  • The delivery destination and required delivery date.

Ask for the current minimum order quantity, sample availability, production lead time and available technical documentation.

J-340A frequently asked questions

What is J-340A used for?

J-340A is listed for sealing joints in tunnels, drainage and sewage pipes, concrete and epoxy floors, and sealing wall and floor openings. Share your specific substrates and installation conditions so our team can review the application before you order.

What packaging is listed for J-340A?

The product page lists 310 ml cartridges, 400 ml and 600 ml sausages, and 200 L / 250 kg barrels. Confirm the required format, carton quantity and current availability with your quotation.

How do J-340A, J-340B and J-340H differ?

J-340A is listed as a low-modulus sealant. J-340B and J-340H are listed as high-modulus sealants for low-movement applications. Provide the joint dimensions, expected movement and substrate details, and ask for model-specific technical data to confirm selection.

What information is needed for a joint-sealing enquiry?

Provide the joint width and depth, substrates, expected movement, water exposure and installation conditions. Include drawings or photographs if available and request the application instructions for your project.

How can I request J-340A samples, OEM packaging or technical documents?

Use the enquiry button and include the model, intended application, required packaging, estimated quantity and delivery destination. Ask our team to confirm sample availability, OEM requirements, minimum order quantity, lead time and the available technical documents.

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