DESCRIPTION:
HMA is a one part, high modulus acetoxy cure silicone sealant which reacts with atmospheric moisture to form an elastic rubber-like seal with good weathering and UV resistance. The product is ideally suited to glazing and assembly joint applications and adheres readily to glass and glazed surfaces, some metals and many plastics.
STORAGE:
Store between +5 dg C and +25 dg C in dry conditions in original packaging . Shelf life approximately 12 months.
APPLICATION:
Priming is not required on glass and most glazed surfaces. Other surfaces should be tested to determine whether a primer is required. Please see separate Primer Requirements and Surface Preparation data sheet.
Surfaces must be clean, dry and free from contamination. If required, adjoining surfaces may be masked (masking tape should be removed within 5 minutes of applying the silicone). Deep joints should be filled with an approved material, such as Alfas Bond PU Foam. For movement joints use polyethylene backer rod to avoid three sided adhesion.
Cut the threaded end of the cartridge to expose the silicone and screw nozzle onto the cartridge. Load cartridge into application gun (skeleton gun), trim nozzle to required size and angle. Apply even pressure onto trigger and gun silicone firmly into the joint.
The silicone should be tooled (within 5 minutes of application) using a wet pallet knife or spatula.
| Product Name: |
Metal Master HMA |
| Type: |
High Modulus |
| Curing System: |
Acetoxy |
| Conforming to Standards: |
BS 5889 Type B |
| Standard Colours: |
Translucent and White |
| Other Colours: |
To special order. Minimum qty's apply. |
| Packaging: |
310ml x 25 |
| Hardness Shore A: |
21 |
| Tensile Strength N/mm 2: |
1.5 |
| Movement Accommodation in %: |
+/- 20 |
| Application Temperature in dg C: |
-30 / +60 |
| Service Temperature in dg C: |
-40 / +100 |
| Tooling time (approx) in mins: |
8 |
| Tack-free time in mins: |
25 |
| Full cure (days) |
1 - 5 |
LIMITATIONS:
Metal Master HMA is not recommended for use with polycarbonate, bitumen, asphalt, mortar, marble, galvanised steel, copper, brass, lead, for fixing mirrors, construction of aquaria or on fully submerged joints. The user is advised to conduct tests to determine the suitability of the product for the intended use.
HEALTH AND SAFETY:
Uncured product may irritate the eyes, respiratory system and skin. In case of contact with eyes, rinse immediately with plenty of water and seek medical attention. Use in well ventilated areas. Keep out of reach of children. Use gloves and protective clothing. Do not ingest. See material safety data sheet.
Whilst every care has been taken in the preparation of this information, no warranty is given or implied in connection with any recommendation or suggestion made herein or by our representatives. We reserve the right to modify specifications from time to time without prior notice. The user is advised to conduct his own tests in order to determine the suitability of the product for the intended purpose.
All goods are supplied subject to standard conditions of sale which are available request.
