MELCROSS 83        

Commercial name

Application

MELCROSS 83
Mixed Ether Type
Benzoguanamine resin

MELCROSS 83 is a minimum 98% solids methylated, ethylated benzoguanamine-formaldehyde crosslinking agent with a high degree of alkylation,  a low methylol content and low imino functionality.

This resin is a very effective crosslinking agent for backbone polymers containing hydroxyl,  carboxyl  or amide functional groups such as epoxy, alkyd/polyester or acrylic resins.

MELCROSS-83 resin is insoluble in water.    Due to its hydrophobic nature, this resin has to be dissolved initially in the organic phase of the water reducible backbone polymers.

Typical properties

Appearance

 

Clear,viscous liquid

Colour, APHA

 

Max.70

Non-volatile

Wt.%

Min.98

Viscosity, cone/plate

cps

2500-10000

Specific gravity

25C

 1.17-1.20

Flash point

 C

 Min.100

Free formaldehyde

 %

  0.1

Application
Can coating  enamels.
Genernal industrial purpose paints.
For  desire flexible properties.

Introduction
MELCROSS-83 resin is suitable for a wide range of general industrial stoving finishes, providing high detergent and chemical resistance properties.
This resin is a very effective crosslinking agent for backbone polymers containing hydroxyl,  carboxyl  or amide functional groups such as epoxy, alkyd/polyester or acrylic resins
Designed for Can coating with polyester and epoxy resin.
98% high solids type resin have Excellent detergent resistance and chemical resistance, salt spray resistance.
Methylated/Ethylated type Benzoguanamine resin gives very good hardness and nontoxic films for foods and drinks.
MELCROSS-83 resin dissolves very well in the solvents of alcohols, ketones, esters and aromatic hydrocarbons but partially in aliphatic hydrocarbons and not solves in water.
The compatibility with alkyd resins, polyester resins, acrylic resins and epoxy resins is very good.
Storage stabily at room temperatures is minimum one year after delivery. 
Avoid direct sunshine and store at minimum 5C.  At lower temperatures crystallization may occur.
Acid catalyzed coatings may be cured as low as 140-160C for 20 minutes.
To control the stability, you can use primary alcohols,  amins or with combination of these for neutralization and PH adjustment.

SAFETY
General
Attention must be paid to the normal precautions for handling chemicals and to the measures prescript in the local health regulations.  The work place must be well ventilated, skin care measures should be adapted and safety google should be worn.

    Safety data sheet
P&ID Co.,LTD shall provide MSDS associated with MELCROSS-83  as your request. MSDS of MELCROSS-83

    Storage
If MELCROSS-83 is kept in tightly closed drums or in storage tanks in the cool place, its shelf life is 12 months.

    Remark
This information is given without any warranty or representation. We do not assume any legal responsibility for same, nor do we give permission, inducement, or recommendation to practice any patented invention without a license.   It is offerd solely for our consideration, investigation and verification.  Before using any product, read its label.