Vinyl ester resins offer superior durability, temperature resistance and corrosion resistance. They are therefore frequently utilized when excellent performance against chemicals and solvents is required. PIP VE-CR for acid/alkali resistance on steel and concrete, PIP VE-SR for concentrated acid resistance and additional solvent, and PIP VE-FR for fire resistant applications are some of the specific vinyl ester coating materials that are discussed. The products can be used as floor toppings, tank linings and other protective coatings.
Withstanding industrial chemicals
Vinyl ester performs remarkably well against a spectrum of common industrial chemicals. For example, it exhibits excellent resistance to inorganic acids across a wide range of concentrations and temperatures. It also withstands organic acids, such as acetic and formic acids without significant degradation over time. Alkalis like sodium hydroxide and solvents like acetone may cause minor swelling, but vinyl ester maintains its strength and resists deterioration.
Where to use vinyl ester
The resistance capabilities of vinyl ester allow it to last in settings that would destroy most other plastic and composite materials. There are a wide variety of coating types to choose from to make it the perfect fit for your project. Applications include:
- Storage tanks and process vessels for acidic or alkaline chemicals and solvents.
- Scrubbers and ductwork that handle corrosive fumes or gases.
- Pipes and pumps that carry chemicals from processes to waste treatment.
- Components submerged in wastewater treatment basins and leachate collection systems.
- Structural supports located near corrosive processes.
An additional benefit of vinyl ester is that variations in the formulation can enhance resistance to specific types of chemicals. For example, certain molecular weight resins better withstand solvent swelling. Inclusion of isophthalic acids bolster alkaline resistance. With customized formulation, vinyl ester resin can be adapted to survive long-term submersion in oxidizing acids, chlorinated solvents, aviation fuels and other difficult services.
Limitations of vinyl ester
While vinyl ester coatings provide excellent corrosion resistance and durability, certain applications have some limitations. A key constraint is temperature resistance – vinyl esters tend to have usable temperature ranges of 140-160°F, above which significant decomposition
can occur, unless specifically formulated for heated areas. They also have reduced fire resistance compared to some other polymer options. Shrinkage of vinyl ester during curing also must be accounted for, which can cause coating detachment if underlying layers or substrates are not properly prepared. Implementing engineering and formulation adjustments for the specific intended service environment is always recommended when applying vinyl ester coatings.
Conclusion
Vinyl ester resins provide superior chemical and corrosion resistance, making them an excellent choice for protective coatings in harsh industrial environments. By selecting the proper resin formulation, vinyl esters can be customized to survive long-term contact with oxidizers, chlorinated solvents, fuels, etc. Their strength, durability and resistance to acids, alkalis, solvents and other chemicals allow vinyl esters to withstand exposure that would quickly degrade most plastics. With appropriate engineering considerations for temperature limitations, fire resistance and substrate compatibility, vinyl ester coatings deliver reliable, long-lasting performance against chemical attack, even under the most aggressive conditions. Their capabilities continue to expand as new variations are developed for structures across many industries.
Industrial Polymers at 866-361-3331.