Single Part Silicon Sealant (MF-890)



This Anti-UV Silicon Is For General Purpose With Excellent Adhesion

MF-890 is a one component, neutral cured sealant for general purpose sealing and weatherproofing sealing with good adhesion to most non-porous building materials without priming paint.

MF-890 single part neutrual cured and weatherproof silicon sealant with excellent adhesion for general purposes sealing



  • Single component. Neutral cured, no corrosion to building materials.
  • Excellent adhesion to most building materials without priming paint.
  • Anti-aging.


MF-890 is mainly applied in the assembly of waterproofing sealing for all kinds of windows and doors, glass and other non-porous building materials.


  • In case of contact with eyes, rinse immediately with plenty of water.
  • Avoid long-term contacting with skins.
  • Avoid contaminating food, medicine or cosmetics, etc.



  • Surfaces where silicon shall be applied must be cleaned, dried and free of grease.
  • Injecting the sealant by hand-operated or pneumatic caulking gun and fill the sealant in the joints. For better appearance, cover outside of the joint areas with masking tapes before application. Remove the masking tapes immediately after finishing.


It is inapplicable under following circumstances.

  • Any dirty surface with remnants.
  • Closed or unventilated area.
  • The area where is immerged in water or humid all the year round.
  • The joint which the ground is liable to suffer excessive rub or physical destroy.
  • Frosted or humid surface.


Cartridge package:300 ml / pc(25 pcs / carton)


MF-890 is non-dangerous and it could be delivered by different transportation methods such as truck, train, boat and plane, etc.


The shelf-life shall be 12 months stored in shady, dry and ventilated environment below 27℃.


Items Description Specifications
1 Colour Black, grey, brown and white, etc.
2 Tack-free Time (min.) ≤ 120
3 Sag (mm) ≤ 1
Placed for 21 hrs in the conditions of 23℃±2℃, 50%±5% relative humidity
4 Tensile Strength (MPa) ≥ 0.6
5 Max. Elongation Rate (%) ≥ 300
6 Low Temperature Flexibility (℃) - 40
7 Pollution No pollution
8 Curing Time (T=25℃, RH=50%) (days) 7 - 14
Meet GB/T14683 standards