MD+ Sealant

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MD+ is an engineered fire resistant elastic one-component sealant, suitable for sealing penetrations against, gas & water & when used in conjunction with FiloSeal+HD FIRE, you can achieve a fire-resistant seal up to 4 hours.

  • Tested to London Underground - LUL S1085
  • Tested to European rail applications - BS EN 45545
  • Tested to French rail standard CIt NF F16-101
  • Gas and watertight according to NEN 2768
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The MD+ sealant is easily applied from a skeleton gun. The high quality, one component, flexible sealant “MD+” is based on a silicon compound that cures with air (Humidity).

After application and full curing the thixotropic MD+ forms a plastic elastomer mass with unique qualities effectively sealing and bonding, while providing a high level of durability.

In the event of fire or heat more than 200°C, the sealant starts to expand by about 10 times its original volume which increases its density and then makes it a very poor conductor of heat, thus retarding heat transfer.

    • Flexible, one component, adhesive and sealing compound in a cartridge - (310ml)
    • High levels of Gas and Water tightness
    • Removable / Re-enterable
    • Excellent adhesion, applicable to all common building materials
    • Shows Fire resistance properties
    • High oxygen index
    • Low smoke index
    • Low flame spread
    • Resistant against Water, Alkaline, Chemical agents
    • Resistant to Hydrogen Sulphide / Methane and many other Gases (NedLab)
    • Non-corrosive
    • Solvent-free
    • Shock absorbing
    • Non-toxic, neutral and almost odourless
    • Suitable for any shaped duct/bore hole/opening
    • Quick and easy installation
    • Seals all know materials, PVC & PE sheathed cables, PILC, (HD) PE pipes
    • Suitable for renovations, can be installed retrospectively
Fire resistant up to 2 hours depending on application  
Density 1.2 gr/cm³  
Flow < 2mm ISO 7390
Colour red brown  
Skin over time ± 15 minutes 23°C/55%RH
Curing 3 mm/24h  
Hardness 30 shore A DIN 53505
Elongation 100% DIN 53504
Tensile strength 0,8 N/mm² DIN 53504
Operating temperature +5°C to +40°C  
Temperature resistance -40°C to +120°C  
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280000 MD+ Fire resistant sealant 310ml Order unit 12 pcs/carton