R & A HM FC is one part high modulus and high viscosity polyurethane sealant. It is quick setting and air moisture curing sealant. It provides a permanent ,elastic and high strength bonding. The sealant has a very good resistance to ageing and harsh weather.
HM FC is highly recommended for the bonding and jointing sealing of the windscreen and side windows in the automotive and transportation tool manufacture, also could be used in coach glass joint smooth with excellent aspects. It provides an excellent adhesion on materials like glass, ceramic, painted or naked metal(Aluminum, steel ,Etc.),and therefore can also be used as bonding sealant in different kind of application.
|Appearance||Thixotropic paste / High viscosity|
|Density at 20C||Ca1.2 g/ml|
|Application temperature||5 to 35 ℃|
|Shore A Hardness||55 (ISO0868 – 3 secondes)|
|Extrusion rate (nozzle diamerer of 4mm)||70 to 200g/min. at a pressure of 4 bars|
|Tensile strength (DIN 53504)||Ca 9.5 Mpa|
|Shearing resistance (FORD DELTA)||Ca 4.5 Mpa|
|Tearing resistance (DIN53515)||>18N/mm|
|Elongation at break (DIN 53504)||>400%|
|Resistance to solvents and hydrocarbons||Moderate|
|Acid and base resistance||Good|
|Water and salt spray resistance||Excellent|
Substrate preparation. The substrates to be assembled must be dry, clean, free of oil and other contaminants that could adversely affect the bonding performance. The substrates to be assembled are first treated with the cleaner, When the cleaner is dry, apply the primer .When using cleaner or primer, keep away from all sources of ignition and carefully follow the safety and the handling instructions given by the manufacturer or supplier.
When the primer is completely dry, HM FC to be applied with a hand or pneumatic gun to one substrates,and pressed it on the second substrate before it skinned. Do not apply it at temperatures under 5℃. In cold weather, store the sausages at 20℃ before use. Do not apply on silicones or in presence of polymerized silicones or hybrid sealants (MS or SPUR).
Tools should be cleaned with MEK or acetone before curing. After curing, mechanical cleaning is necessary.
12 months in the original cartridges and sausages,and 6monthes in the drum. Hermetically store the products between 5 and 25℃
310 ml cartridges and 600 ml sausages
Not classified as hazardous. Read the material safety data sheet before use. Remarks: The present data sheet deals with general information.It is necessary for the user to check beforehand the compatibility of the materials and the working techniques.our products are of constant and superior quality and therefore can not be blamed for discrepancies due to their use or reaction that are of exclusive responsibility of the user.Our technical service is at the disposal of our clients for any additional informantion.