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While ATR is an ideal method of analysis by FTIR of base polymers, often in pellet form for quick quality control or raw materials testing, if it is required to determine the presence of additives or contaminants in low concentrations, transmission analysis using a thin film sample with a longer pathlength than is possible with ATR is the best method. The Constant Thickness Film Maker and High Temperature Constant Thickness Film Maker tools enable the hot pressing of polymers to form a thin film sample and is one of the most commonly used techniques for the analysis of polymers by FTIR. Ideally suited for use with the Specac 15-ton manual press, there are 2 options based on the maximum temperatures of either 300 oC or 400 oC. Constant Thickness and High Temperature Constant Thickness Film Maker Comparison
| Constant Thickness Film Maker | High Temperature Constant Thickness Film Maker | |
| Maximum Temperature | 300oC | 400oC |
| Maximum Load | 4 Ton | 2 Ton |
| Sample Diameter | 29mm | 29mm |
| Sample Thickness | 0.015, 0.025, 0.050, 0.100, 0.250, 0.500mm Up to 3mm with special manufacture | 0.015, 0.025, 0.050, 0.100, 0.250, 0.500mm |
| Approx. Cycle Time | 20-30 minutes | 30-40 minutes |
| Required | · CTFM Accessory · Specac Heated Platens: GS15515 · Compatible Specac Benchtop Mounted Press | · HT-CTFM Accessory · Compatible Specac Benchtop Mounted Press |
| Compatible Presses | · 15* or 25-Ton Manual Press · 8, 15 or 25-Ton Power or AutoTouch Press * Best Suited for Film Making | · 15-Ton* Manual Press · 8 or 15-Ton Power or AutoTouch Press * Best Suited for Film Making |
| Power Supply Requirement | 110v or 230v – please specify | 110v or 230v – please specify |
| Cooling Water Requirement | Approx. 1 litre per minute flow | Approx. 1 litre per minute flow |
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