MANUFACTURERS AND EXPORTERS OF AMPEROX M 60

Storage

• Due to the relatively unstable nature of organic peroxides a loss of quality can be detected over a period of time. To minimize the loss of quality, We recommend a maximum storage temperature (T , max.) for each organic peroxide product.
• For    AMPEROX    M60         Ts max. = 25°C
• When stored under the recommended storage conditions, AMPEROX M60 will remain within our specifications for a period of at least three months after delivery.

Thermal stability

• Organic peroxides are thermally unstable substances, which may undergo self-accelerating decomposition. The lowest temperature at which self- accelerating decomposition of a substance in the original packaging may occur is the Self-Accelerating Decomposition Temperature (SADT). The SADT is determined on the basis of the Heat Accumulation Storage Test.
• For    AMPEROX    M60         SADT : 60°C
• The Heat Accumulation Storage Test is a recognized test method for the determination of the SADT of organic peroxides (see Recommendations on the Transport of Dangerous Goods, Manual of Tests and Criteria - United Nations, New York and Geneva).

Major decomposition products 

• Carbon dioxide, Water, Acetic acid, Formic acid, Propanoic acid, Methyl ethyl ketone

Packaging and transport 

• The standard packaging is a 30 I HDPE can for 30 kg peroxide solution.
• In Asia Pacific the standard packaging is a 30 | HDPE can for 20 kg peroxide solution.
• Both packaging and transport meet the international regulations. For the availability of other packed quantities contact our representative.
• AMPEROX M6Ois classified as Organic peroxide type D; liquid; Division 5.2; UN 3105;

Applications

• AMPEROX M60 general purpose methyl ethyl ketone peroxide (MEKP) for the curing of unsaturated polyester resins in the presence of a cobalt accelerator at room and elevated temperatures. AMPEROX M60 is a 10% higher concentrated version of AMPEROX M60
• The curing system AMPEROX M60 with cobalt accelerator is particularly suitable for the curing of geicoat resins, 1aminating resins, lacquers and castings; moreover the manufacture of light resistant parts may be possible contrary to the curing system benzoyl peroxide/amine accelerator.
• Practical experience throughout many years has proven that by the guaranteed low water content and the absence of polar compounds in AMPEROX M60 this peroxide is very suitable in GRP products for e.g. marine applications.
• For room temperature application it is necessarv to use AMPEROX M60 | together with a cobalt accelerato! (e.g Accelerator 6).

Dosing

• Depending on working conditions, the following peroxide and accelerator dosage levels are recommended:
• AMPEROX M60        0.5- 3 phr’
• Accelerator 6            1-4 phr

Cure Characteristics 

• In a high reactive standard orthophthalic resin in combination with Accelerator 6 (= 1% cobalt) the following application

• Gel times at 20°C

• 2 phr AMPEROX M60 + 0.5 phr,        Accelerator 6            10 minutes
• 2 phr AMPEROX M60 + 0.5 phr,       Accelerator 6            12 minutes

• 2 phr AMPEROX M60 + 1.0 phr,        Accelerator 6            6 minutes
• 2 phr AMPEROX M60 + 1.0 phr,        Accelerator 6            7 minutes

• Cure of 1 mm pure resin layer at 20°C

• The speed of cure is expressed as the time to reach a Persoz hardness of respectively 30, 60 and 120 s.

• Cure of 4 mm laminates at 20°C

• 4 mm laminates have been made with a 450 g/m^ glass chopped strand mat. The glass content in the laminates is 30% (w/w).

• The following parameters were determined:
• - Time-temperature curve.
• - Speed of cure expressed as the time to achieve a Barcol hardness (934-1) of 0-5 and 25-30 respectively.
• - Residual styrene content after 24 h at 20°C and a subsequent postcure of 8 h at 80°C.

 Pot life at 20°C

• Pot lives were determined of a mixture of AMPEROX M60 and anon- preaccelerated UP resin at 20°C.
• 2 phr      AMPEROX M60       10 h
• 4 phr      AMPEROX M60        6h