Especially in climates with extreme weather conditions, water-based paint systems currently used to protect the underside of trailer floors can break down when subjected to intense water spray and road debris. Specific areas, like trailer wheel locations, are more prone to degradation. Once water-based paint breaks down, the wood absorbs moisture, causing warping, swelling and deterioration of glue bonds. What's worse: once the undercoating has been breached, water can migrate into the trailer itself, resulting in severe cargo damage.
PROLAM's P•u•R solution provides never-before-seen protection for wood trailer floors. The hot-melt polyurethane reactive P•u•R undercoating is used on the underside of laminated trailer floors and eliminates the degradation issues associated with traditional water-based paint undercoatings.
PROLAM's P•u•R undercoating provides protective features for wood trailer floors that standard water-based paint undercoatings cannot match, including:
Weather and elements weaken water-based paint coatings under trailer floors, leading to warping, uneven swelling stresses, and degradation of glue lines. Once the coating has been breached, water can migrate into the trailer itself, resulting in cargo damage.
ELONGATION-ASTM D-638 |
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Tensile tests measure the force required to break a sample material and the extent, measured in percentage, to which the specimen stretches or elongates to that breaking point. |
Water-based undercoating elongation: 5% P•u•R elongation: 600% |
ABRASION* - NEMA LD3-2005 |
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Determines resistance to abrasion, or the ability of a material to withstand rubbing scrapping, or erosion; Measured by the number of cycles needed to create weight loss. |
Water-based undercoating abrasion test: 20 cycles P•u•R abrasion test: 225 cycles |
ADHESION** - ASTM D-3359 |
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Measures adhesion of a undercoating material to metallic samples by applying and removing pressure-sensitive tape over cuts made in the undercoating. Measured on a scale of 0 - 5, with 5 representing the least amount of lifting. |
Water-based adhesion: Class 4 P•u•R adhesion: Class 5 |
WATER ABSORPTION*** - ASTM D-5795-95 |
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Measures amount of water absorbed after sample material is exposed to moisture; |
Water-based absorption: 29.9 grams/100 sq. inch. P•u•R absorption: 3.4 grams/100 sq. inch. |