Chemical Resistance
Dow core foams are compatible with most adhesives and are compatible with or resist most acids, bases, brines, epoxies and alcohols used in panel fabrication/lamination processes.
TRYMER™ core foams are also compatible with FRP resins and most solvent-based adhesives used in composite applications and pultrusions. For more detailed information about the chemical resistance of TRYMER foam, download the Chemical Resistance of TRYMER Rigid Polyisocyanurate Insulation Information Sheet. (13KB PDF)
Extensive testing has also been done on STYROFOAM™ extruded polystyrene and its compatibility with various chemicals (see table).
| Chemical Resistance(1) of STYROFOAM™ Extruded Polystyrene |
| Acid, inorganic, weak |
Excellent |
| Acid, inorganic, strong |
Excellent |
| Acid, organic, weak |
Excellent |
| Acid, organic, strong |
Good |
| Bases |
Excellent |
| Alcohols, including isopropyl alcohol |
Excellent |
| Methyl ethyl ketone |
Not recommended |
| Polyglycols, including propylene glycol |
Excellent |
| Hydrocarbons |
Not recommended |
| Salts |
Excellent |
| Insecticides |
Not recommended |
| Kerosene |
Poor |
| Mineral oil USP |
Excellent |
| Naphtha (VMP) |
Not recommended |
| Turpentine |
Not recommended |
| Beer |
Good |
| Gasoline |
Not recommended |
| Fruit juices |
Good |
(1) Explanation of ratings:
Excellent = The plastic was unaffected for the duration of the test.
Good = A very slight clouding or discoloration of the plastic.
Poor = Considerable change in plastic during exposure, possible etching,
discoloration, dimensional or weight changes.
Not Recommended = Severe attack of the plastic. Became soft and unusable after a few hours of exposure.
NOTE: This table should be used as a guide only. For design purposes, specific test data on the intended application may be needed.
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