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> PolyDrain > Chemical Resistance
Chemical Resistance
Conventional cast-in-place trench drains are susceptible to deterioration from a wide variety of chemicals, including such common and highly present substances as salt, fuel, sewage, gasoline, and dilute acids. Normal concrete can absorb as much as 5% moisture. Cyclic freeze and thaw is extremely detrimental causing "break-up" and deterioration.
PolyDrain products are designed to withstand hostile work environments and severe weather abuse.
Charts
The Chemical Resistance Charts are intended to provide engineers and designers with specific chemical resistance information for the PolyDrain system. Chemicals, test concentrations and maximum recommended temperatures for both PolyDyn and PolyChampion are listed. Also see PolySeal sealant chemical resistance information below.
When a particular corrosive environment is being considered, or the system will be subjected to chemicals not listed in the charts, PolyDrain recommends that a coupon of PolyDyn and/or PolyChampion be placed in the chemical for an appropriate test period to determine suitability.
This information is presented for use by competent personnel in the selection of a corrosion resistant drainage system. The chemical resistance data has been supplied by PolyDrain resin suppliers and represents their experience, testing and analysis.
PolyDyn
Standard PolyDrain products are manufactured from PolyDyn; an advanced formulation of select quartz aggregates and inert mineral fillers bonded with high grade polyester resins. This unique material is suitable for most drainage applications, including all normal exterior and interior drainage involving exposure to salt, gasoline, fuel oil and many dilute acids and alkalis.
PolyChampion
PolyChampion is formulated to resist heavily concentrated and corrosive chemicals. Special resins of vinyl ester, recognized for their excellent corrosion resistance, are used as binders in the polymer concrete mixture. Only inert quartz minerals are used as aggregates.
Gratings
PolyDrain offers a variety of gratings that are manufactured to offer corrosion resistance. Fiberglass mesh grates formulated with vinyl ester resins offer corrosion resistant properties very similar to PolyChampion. Grates are supplied with stainless steel locking devices and bolts. Slotted grates and solid covers in stainless steel are also available.
PolySeal
PolySeal 1 is single-part polyurethane in a standard caulk tube, and is used as a general purpose sealant for dirty water applications. The customer should test for suitability if chemical resistance is a requirement.
PolySeal 2 is a two-part epoxy in a double tube with a static mixing nozzle. PolySeal 2 maintains permanent flexibility and offers chemical resistant properties commensurate with many harsh chemical environments. For more information, consult the PolySeal 2 Chemical Resistance Chart.
PolySeal 3 is a two-part vinyl ester sealant which sets hard in about 30 minutes. It is strongly recommended for sealing all joints in a PolyChampion installation. It is also ideal for bonding all PolyDrain fabrications and mitres. For more information, consult the Chemical Resistance Chart.
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