Hot Melt Adhesive
Product #: HMT200A
Hot melt adhesive is available as tape and is designed to be used primarily in conjunction with heatshrinkable tubing and moulded shapes in order to provide sealant / adhesive action at the interface between the encapsulant and the substrate. The adhesive is a specially compounded blend of resins which melts below the shrinkage temperature of heat shrinkable polyolefin products (+135°C) and also bonds to the polyolefin surface and the wide variety of substrate surfaces to which it is applied, eg cable jackets, metal sheaths and connector back shells.
Specifications
| Method of Application | Substrate surfaces should be clean and free from grease and dirt. If necessary, wipe with a suitable solvent. |
| The substrate should be pre-warmed to reduce its effect as a heat sink. | |
| The HMT200A tape should be wrapped once, under slight tension, around the warm substrate with a minimum overlap. When soft it can be pressed into position. | |
| Heatshrink is then placed over the assembly and recovered by heating. | |
| After the component has been recovered, heating must be continued to ensure that the tape has completely melted, thus ensuring correct bonding. | |
| Any rearrangement of the assembly after the heat-shrinkable component has been positioned must be done whilst the sealant is still molten and the encapsulation is above 120°C. Once set, no stresses should be applied to the assembly until it has completely cooled. | |
| Note | Substrates with considerable heat sink characteristics should be pre-warmed. This type of assembly may require even longer post-shrinkage heating to ensure that the HMT200A tape has melted. |
| Operating Temperature | -55 to +105 ºC |
| Softening Point | +110 ºC |
| Peel Strength (XLPE/Metal) | 22 lb/in |
| Peel Strength (XLPE/XLPE) | 46 lb/in |
| Peel Strength (PVC/PVC) | 18 lb/in |
| Lap Shear Strength (XLPE/Metal) | 36 lb |
| Lap Shear Strength (XLPE/XLPE) | 55 lb |
| Shelf Life | 2 years |
| Color | Natural |