Mek Hardener

Mek Hardener

What is the MEKP catalyst?

MEKP (methyl ethyl ketone peroxide) is the catalyst added to polyester resins and vinyl ester resins. When the catalyst is mixed with the resin, a chemical reaction occurs that generates heat that hardens (hardens) the resin. Use about 1/2 oz per liter of resin.

People also ask what are Mekp hardeners?

MEKP Liquid Hardener is a common hardener based on methyl ethyl ketone peroxide. It is required when working with polyester resin, gelcoat and vinylester resin. It is required in different concentrations, depending on the needs of each resin-based product. MEKP acts as a catalyst when mixed with the resin.

And how many drops of catalyst do I need for the resin?

The ratio of catalyst to resin is between 1 and 2% of hardener based on the total volume of resin to be used. For example, four drops of hardener make up 1% of 1 ounce of resin. The addition of more or less catalyst will increase the speed or shorten the curing time of the resin.

So what's the difference between MEK and Mekp?

MEKP is methyl ethyl ketone peroxide, the catalyst for polyester resin. MEK is methyl ethyl ketone. These two are very different. MEK does not act as a catalyst for the resin.

How is Mekp neutralized?

MEKP can be neutralized with a reducing agent such as sodium sulfite. If the neutralization product no longer contains peroxides, it can be incinerated or disposed of safely.

Is the MEK dangerous?

How can methyl ethyl ketone affect my health? Individuals exposed to MEK experience irritation of the nose, throat, skin, and eyes. When MEK is inhaled along with other harmful chemicals, the damage can be more severe. Animals that breathe or ingest a lot of MEK have serious health consequences, including birth defects, fainting and death.

How long does Mekp last?

About 23 months How is mekp done? MEKP is basically a liquid form of acetone peroxide, MEK and acetone are quite similar chemicals, just like the organic peroxides that make them up. 1/2 hour in the refrigerator until about 4 ° C).

Can MEK cause cancer?

No increase in cancer incidence was observed in two human studies examining long-term occupational exposure to MEK. There are insufficient animal studies to evaluate the carcinogenicity of MEK. However, comparisons with chemicals of similar structure suggest that MEK has a low carcinogenic potential.

What are the side effects of MEK?

Inhalation: can irritate nose and throat. In high concentrations: can damage the nervous system. Symptoms can include headache, nausea, dizziness, lightheadedness, and confusion. Severe exposure can cause unconsciousness.

Is Mekp flammable?

MEKP is a colorless to yellow liquid with a minty odor. MEKP can spontaneously ignite or decompose when mixed with easily oxidizable organic or combustible materials or chemical reagents [2].

What are liquid hardeners used for?

Bondo Liquid Hardener is a hardener that works with polyester fiber resins and Bondo Metal Reinforced Filler to chemically accelerate the hardening process. The liquid consistency is quick and easy to mix. This hardener combines the best ease of use and high quality results.

What is methylethylketone used for?

MEK is a liquid solvent used in surface coatings, adhesives, printing inks, intermediate chemicals, magnetic tapes and wax removers for lubricating oil. MEK is also used as an extraction medium for fats, oils, waxes and resins. It is a very efficient and versatile solvent for surface coatings.

How does the resin harden?

The mixing of the two liquid parts causes an exothermic reaction that generates heat and solidifies the material in a few minutes, creating casts or copies in the shape of the mold in which it is cast. The hardened molded resin is removed from the flexible mold and allowed to cool.

What is the catalyst for polyester resin?

MEKP (methyl ethyl ketone peroxide) is the catalyst added to polyester resins and vinyl ester resins. When the catalyst is mixed with the resin, a chemical reaction occurs that generates heat that hardens (hardens) the resin. Use about 1/2 oz per liter of resin.

How is polyester resin produced?

Polyester resins are unsaturated synthetic resins formed by the reaction of dibasic organic acids and polyvalent alcohols. These are mostly based on isophthalic acid and are cut with styrene in high concentrations - usually up to 50%. Polyesters are also used in anchor bolt adhesives, but epoxy-based materials are also used.

How do you use Araldite resin and hardener?

Take equal quantities (by volume) of Adralite Standard Resin and Hardener. Mix the resin and cure it until a uniform color is obtained. Apply a thin layer of the mixture on both surfaces. Assemble the surfaces and press with masking tape, pliers or masking tape.

Mek Hardener