Bisphenol_A Epoxy Based Vinyl Ester Resin

Vinyl ester-bisphenol resins (code VER ™ 900) are composed of two components of resins and catalysts. The characteristics of this product include high mechanical and chemical properties, and low viscosity. Due to its high chemical resistance, this type of resin is used to protect surfaces against chemicals such as organic acids, alkalis, oxidizing chemicals and salt solutions, etc. The setting speed of vinyl ester resins is very high due to the presence of catalyst or initiator materials.


PRODUCT DESCRIPTION

Vinyl ester-bisphenol resins (VER ™ 900) are thermostatic polymer resins. In general, VER ™ 900 resins are composed of a set of properties and characteristics of epoxies and esters, and for this reason, it has finally become a unique product. In fact, these types of resins contain polymers that, if used alone, can take months or years to harden completely.

 For this reason, chemicals called catalysts are used to speed up the curing process. The most famous type of these catalysts is called MEKP. These catalysts greatly increase the setting speed of the resins. Vinyl ester resins have high mechanical and chemical properties. These resins are highly resistant to organic acids, alkalis, oxidizing chemicals and salt solutions. This product has a low viscosity so it saturates the surfaces well and quickly. This type of resin is also used in the production of GFRP fibers due to its high adhesion strength.

General Properties of Vinyl Esters

These resins generally are low in viscosity and cure quickly at ambient temperatures without post curing. They offer excellent adhesion and high strength. Polyesters and vinyl esters are known for their chemical resistance, although most are better in acidic environments than in strong alkaline conditions. (Alkaline solutions attack the ester linkage, reforming the polyol and a salt of the carboxylic acid.) They are resistant to organics, including solvents, as well. Polyesters and vinyl esters are used in applications that require resistance to aggressive chemicals and elevated temperatures as high as 212 F (100 C) wet or 350 F (177 C) dry. Uses include tank linings; floor linings; secondary containment linings; and coatings for structural steel, walls, and ceilings.

Vinyl Ester Applications

Vinyl ester lining systems are used for top to bottom protection of industrial plants and equipment, especially where acid or organic chemicals are present. These uses include protective, spray-applied coatings for ceilings, walls, hoods, ducts, and tank exteriors; interior tank linings; reinforced flooring for process spillage areas; and trenches, sumps, and secondary containment surfaces. There are many applications for these products throughout the chemical process industry and in a variety of other industries that handle corrosive chemicals. Examples are given below.

In primary metals plants, these products may serve as reinforced linings to protect concrete floors, foundations, and trenches from acids used for pickling.

The pharmaceutical industry uses reinforced vinyl ester for sanitary protection of process floors exposed to acid and organic solvent spills. Special crack-bridging versions are used for truck unloading areas and secondary containment basins.

For more than 25 years, the power industry has used flake-reinforced and fiberglass-reinforced linings for scrubbers, tanks, ducts, and stacks to protect critical flue gas desulfurization (FGD) equipment for long-term service.

The waste treatment industry continues to use these systems for storage and neutralization tanks, unloading areas, and secondary containment basins.

Chlorine producers use flake-reinforced linings for elevated temperature brine storage tanks.

Municipal sanitation facilities use fiberglass- and flake-reinforced linings and coatings for grit chambers, sumps, and wet wells.

Glass flake-reinforced polyester linings are used in food-related applications such as starch tanks.

Vinyl Ester Application Considerations

Environment

Temperature of the surface and the adjacent air typically should be between 45 and 120 F (7 and 49 C) during product application to provide proper cure. Excessive temperature can cause bubbling, pinholing or high thermal stress in the finished lining. Consult the manufacturer’s literature for the exact temperature range. The surface temperature should be at least 5 F (3 C) above the dew point of the air in the work area to avoid condensation or application on a wet surface.

Surface Preparation

Because of the generally high thickness of these systems and their use at elevated temperatures, proper surface preparation is essential to product performance. Concrete surfaces should be abrasive blasted and have sufficient tensile strength for the system being applied. Minimum acceptable tensile strength is about 200 to 300 psi (1.4 to 2.1 MPa), which is the maximum tensile strength achieved by portland cement concrete. Surface tensile strength can be determined in accordance with ASTM D 4541, Standard Test Method for Pull-off Strength of Coatings Using Portable Adhesion Testers. Steel should be blasted with a coarse, angular abrasive to produce a minimum profile of 3 mils (75 micrometers). Shot blasting produces a peened surface, so grit blasting is required. Stainless steel and alloys may require harder or larger blast media or higher blast pressures to achieve the desired profile. Surface cleanliness in accordance with SSPC-SP 5, White Metal Blast Cleaning, is almost always required.

Key Features


  • Maintains physical properties as well as high heat resistance
  • Excellent resistance to corrosive substances such as organic acids, salts, alkalis, chemicals and…
  • The lower the viscosity, the faster the surface impregnates the material.
  • High resistance and toughness
  • High mechanical and chemical properties
  • Combine easily
  • High penetration and reduced empty space

Applications


  • Chemical storage tanks
  • GFRP fibers production
  • Foam gas desulfurization systems
  • Corrosion resistant floors
  • Wastewater treatment systems
  • Food storage tanks and pure water system
  • pipelines
  • Construction of vessels

Packaging


  • 23 kg buckets

Colour


  • The resin is colorless, but the catalysts that are added to it give the composition a color.
  • Catalysts are usually red

technical specifications

Physical Properties
appearance

The resin is colorless, but the catalysts that are added to it give the composition a color. Catalysts are usually red.

Pot life

4 months after production

maintenance

It should be kept away from heat, sparks, flames, direct sunlight. It is better to keep in a dark place.

Fully emptied containers should be closed immediately after use.

Mechanical Properties

viscosity

275  mpas
Specific Gravity

1.03 gm/cc

Monomer content

48%
Barcol hardness

35

Tensile strength

82 Mpa
Tensile modulus

3720 Mpa

Tensile Elongation at yield

4.6%
Tensile Elongation at break

7.9%

Flexural Strength

131 Mpa
Flexural modulus

3450 Mpa

Heat distortion temperature

98° C
Application Instructions
  • The surface must be cleaned of any contamination.
  • The surface hardness should be measured with a barcol (hardness tester), as well as an acetone sensitivity test.
  • According to the datasheet tables, the mixing ratio of catalyst to resin should be determined based on the amount of ambient temperature as well as the gel time of the compound.
  • After determining the mixing ratio, the ingredients should be mixed with a mixer for 2 to 3 minutes.
  • Then, this type of resins can be applied to the desired surface by one of the methods: hand, spray, paltrogen, filament coil, casting in polymer concretes.

technical documents

Technical Data Sheet (TDS)

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Safety Data Sheet (SDS)

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Drawings

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Frequently Asked Questions

How many components is vinyl ester resin made of?

Vinyl ester resins with a chemical phenol base are made from a combination of two components, resins and catalysts.

What are the properties of vinyl ester resin?

The characteristics of this product include good mechanical properties, low viscosity and high chemical warp.

What increases the setting time of vinyl ester resin?

The setting time of vinyl ester resins is very high due to the presence of catalyst or initiator materials.

What is the chemical resistance of vinyl ester resin against organic and alkaline acids?

Vinyl ester resins have a very high chemical resistance against organic and alkaline acids.

What chemicals does vinyl ester resin resist?

Due to its high chemical resistance, this type of resin is used to protect surfaces against chemicals such as organic acids, alkalis, oxidizing chemicals and salt solutions, etc.

Why is vinyl ester resin used in the production of GFRP fibers?

Because this product has a low viscosity, it saturates the surfaces well and quickly, and this type of resin is also used in the production of GFRP fibers due to its high adhesion strength.

What color is the vinyl ester resin product?

The resin is colorless but the catalysts that are added to it give the composition a color. Catalysts are usually red.

What methods are used to apply vinyl ester resin?

This type of resin is applied to the desired surface by one of the methods of hand, spray, palette, filament coil, casting in polymer concretes.

Products

Afzir Company offers you a wide range of Vinylester Coatings for many applications.

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