Melamine resin treated TMT for HC 3.2 (decking and similar) applications - Melamika
Thermally Modified Timber (TMT) offers various advantages such as improved durability against decay, enhanced dimensional stability, and chemical-free environmental profile. However, concerns include limited effectiveness for ground contact applications, questions about certain uses, lack of termite protection, and reduced impact strength. TMT is suitable for claddings, fencing, decking, and other applications where its unique properties can be leveraged.
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Melamine resin treated TMT for HC 3.2 (decking and similar) applications - Melamika Bror MOLDRUP, CEO, IWT Denmark
MOLDRUP-SSP THERMAL TREATMENT PLANTS 4 m3/cycle plant 2001 60 m3/cycle plant 2017
Thermally Modified Timber (TMT) ADVANTAGES Improved durability against decay (HC 3.1) Can be used on almost all wood species (also resistant species like spruce) Improved dimensional stability (50-80%) Consistent colour through the wood Reduced thermal conductivity (10-15%) Resin removed Improved resistance against some insects Reduced equilibrium moisture content (50-80%) Chemical free and attractive environmental profile Simple End-of-Life disposal Extremely cost effective
Thermally Modified Timber (TMT) CONCERNS Not good for HC4 (ground contact) and higher Serious questions about HC 3.2 use No effective termite protection Colour not UV resistant (use UV blocker) Reduced impact strength More brittle
NTR testing for class AB and ABmod Pine SAP-wood EN113 + lap-joint field test Pine HEART-wood TS15083-1 + lap-joint field test
Properties for TMT pinewood for use class including 3.1 (cladding). lower density (420 kg/m3) brittle surface looks like hardwood but feels like softwood coloured throughout adhesion can be problem with pressurized system machinability more difficult for open system treated no real termite resistance Properties for Melamika Wood for use class including 3.2 (decking) increased density (450 - 540 kg/m3) enhanced hardness (like many hardwoods) looks and feels like premium hardwood coloured throughout excellent adhesion qualities enhanced machinability termite resistance
Use application with 160C SSP- thermal treatment for outside Use application without thermal treatment for indoor: Melamika wood does not penetrate fully into the cell walls and needs additional protection against fungi indoor flooring with soft species/pine indoor table tops with using soft species/pine single wood pieces up to 6 meter length and 200 mm wide for work-tops stair components internal furniture and joinery veneer cladding (3.1) decking (3.2) replacing hardwoods like Ip
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