CLEAPSS DT - Supporting practical work in science, technology and art


MRATs - Textiles
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MRAT - Model Risk Assessment Introduction
MRATsAdministration
This edition (2020) is the seventh full version; There are significant changes in format, updates in WELs and IRM.
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MRAT - 003 - Hot-Melt Glue Guns
MRATsProjects
Hot-melt adhesives are supplied as sticks of copolymers of ethene and vinyl acetate. Heat is used to melt the adhesive in the ‘glue gun’ so that drops can be applied to the materials to be joined. Bonding results when the glue solidifies on cooling. Many different types of gun are available with electric or butane cartridge heating and supplying glue at different rates.
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MRAT - 004 - Hot-Melt Glue Sticks
MRATsProjects
These adhesives are supplied as sticks of copolymers of ethene and vinyl acetate. Bonding results when the glue solidifies on cooling. They form fairly strong bonds between many surfaces, eg, cardboard, wood and plastics.
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MRAT - 011 - Craft Knives, Scalpels and Scissors
MRATsProjects
The use of scissors for cutting paper and boards.The use of craft knives and scalpels, with and without cutting mats.
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