High Density Overlays

HIGH DENSITY OVERLAYS (HDO) AND FILMS

Highly saturated papers that are self-bonding to the substrate without a glue coating. Because of their higher resin content, they produce a somewhat glossier surface texture compared with MDO resulting in an “architectural finish” on concrete surfaces. The higher resin gives the HDO and films superior barrier properties and increased resistance to abrasion and alkalinity. HDO can extend panel life up to 20 times over non-overlaid plywood. When would you specify a phenolic over melamine?

HDO Concrete Form Product Application Matrix

173 C180 C120 N1Alka-Max MAlka-Max P
Concrete Pour ApperanceArchitectural on smooth veneer faceArchitectural on smooth veneer faceArchitectural on smooth veneer faceArchitectural on smooth veneer faceArchitectural on smooth veneer face
DurabilityGoodBetterBetterBestNext Best
Grain Masking and Panel FeaturesGood with appropriate cushion sheetGood with appropriate cushion sheetGood with appropriate cushion sheetGood with appropriate cushion sheetGood with appropriate cushion sheet
Resin TypePhenolic HybridPhenolic HybridPhenolic HybridMelaminePhenolic
Resin Content54%58%54 %62%62%
Preferred ApplicationStandard UseMore uses or higher alkalinityMore uses or higher alkalinity, same as 2 sheets of 173PHighest alkalinity resistance for harsh concrete mixesHighest alkalinity resistance for harsh concrete mixes
Approximate Caliper.006 in.0069 in.0139 in.0835 in.0835 in
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