Flex 310M Classic Adhesive Sealant - Grey - 310ml

Universal, elastic adhesive & sealant.

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A high strength, highly elastic and incredibly versatile adhesive sealant. Flex 310 M Classic from Weicon bonds well to most surface types, is completely free of silicones and solvents, and is suitable for indoor or outdoor long term sealing and bonding.

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  • High bond strength and permanently elastic
  • Universal adhesive with exceptional versatility
  • Silicone free and suitable for indoor and outdoor use

Weicon Flex 310 M Classic Universal Sealant is a high quality, German engineered and manufactured, grade of elastic adhesive that remains permanently elastic after curing. It creates strong bonds and has outstanding resistance to ageing and UV. This MS polymer based adhesive is also completely free of silicones, solvents, halogens and isocyanate.

Flex 310 M Classic Universal Adhesive is ISEGA certified for use as an adhesive in food technologies and is both fresh water and salt water resistant. This high quality, 1-part sealant bonds well to a wide range of materials including stone, glass, wood, ceramic, metals and many plastics. 

Applications for Flex 310 M Classic Universal Sealant

  • Tank sealing, construction and repairs
  • Electrical repairs
  • Sealing around light fittings
  • Shop fitting and displays
  • Plastic processing
  • Automotive, aerospace and marine interior work
  • Boat and yacht construction
  • Heating, air conditioning and ventilation work
  • Metal construction
  • Anywhere silicone adhesives are not suitable or permitted


Do I need any special equipment to use this?

No. Weicon Flex 310 M Classic Universal Adhesive Sealant can be applied using standard caulking guns.  

How long does it take to cure?

Elastic adhesives cure by reacting with the humidity in the surrounding environment so cure time is impacted by both the room temperature and humidity. Assuming 50% relative humidity and a temperature of about 23°C, you can expect curing to occur at a rate of 2-3mm per 24 hours. This is measured from the sealants surface working in.

In higher temperatures and/or humidity, curing will be accelerated. Skin over time is 10 minutes (approximately).

How long have I got to work with it?

Skin over time is 25 minutes. This is based on an assumed working environment of approximately 23°C and 50% relative humidity. Higher temperatures and/or humidity will shorten this time a little while the inverse is also true.

Property Typical Value Standard
Colours Black, Grey or White -
Basis 1 Component Polyoxypropylener -
Viscosity Pasty -
Stability / Run-off 1mm ASTM D 222
Density 1.44 g/cm³ -
Curing Conditions +5°C to 40°C w/ 30%-95% Relative Humidity. -
Skin-Over Time 25 MInutes 50% Relative Humidity, 23°C.
Cure Speed (First 24 Hours) 2-3mm -
Volume Change -1% DIN 52451
Cure Type Humidity -
Max. Gap Filling Depth 5mm -
Max. Gap Filling Width 25mm -
Shore Hardness 42 Shore A (+/- 5) DIN 535 / ASTM D 224
Elongation at Break 650% (+/- 5) DIN 53504 / ASTM D 2240
Tensile Strength of the Pure Adhesive Sealant 3.3 N/mm² -
Average Tensile Shear Strength 2.1 N/mm² DIN 53283 / ASTM D 12
Tear Strength 20 N/mm² DIN 53515 / ASTM D 1002
Max. Movement Capacity 15% -
Overpaintable w/ Liquid Paint No. -
Building Material Category Code B 2 DIN 412
Temperature Resisance -40°C to +90°C Continuous
Up to 130°C for Short Periods.
Minimum Shelf Life 12 Months when stored at 5°C to 25°C -
SKU SWM000040B01V0002
Model # 13305310
Brand Weicon
Shipping Weight 0.5030kg
Shipping Width 0.050m
Shipping Height 0.050m
Shipping Length 0.350m
Shipping Cubic 0.000875000m3
Unit Of Measure ea

Technical & Safety Data Sheet.

TDS Link SDS Link      
Flex 310 M Classic Universal Adhesive Sealant TDS Flex 310 M Classic Universal Adhesive Sealant SDS      

Related Content & Information.

Flex 310 m Classic Demo Video        
Flex 310 M Classic Demo Video        

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