AOC Atlac?430 LV GT250 Vacuum Imported Epoxy Vinyl Ester Resin

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Standard Epoxy Vinyl Ester Resins for Vacuum Import Processes
Atlac? 430LVGT250 composite products made of Atlac? 430LVGT250 have excellent mechanical properties and good heat resistance; excellent wettability and flow in the operating process.

Characteristic performance

Excellent mechanical properties

Excellent chemical and water resistance

Long-term heat resistance

Good compatibility with carbon fibers and aramids

Rapid infiltration for efficiency

CCS and LR certification

Product Properties

Atlac? 430 LV GT 250 is a pre-promoted, styrene solution of epoxy bisphenol A vinyl resin with medium reactivity and low viscosity.
The Atlac? 430 LV series is available in several gel time versions
Atlac? 430 LV GT 50
Atlac? 430 LV GT 150

typical application

Atlac? 430 LV GT 250 can be used for glass fiber reinforced parts with excellent chemical resistance for better mechanical properties and good bonding with both carbon and aramid fibers, e.g. for boats, automotive parts, tanks, containers, corrosion protection, hydraulic engineering, sewer repair, etc.
Atlac? 430 LV GT 250 has a very low viscosity and is suitable for processes such as vacuum introduction, RTM, etc.; it is also certified by CCS (China Classification Society) and Lloyd's Register (Lloyd's Register) LR.

Product Indicators

performances	numerical value	unit (of measure)	Test Methods
exterior condition	quiet	-	TM 2265
Solid content	53-58	%	TM 2033
Infrared drying acid value	4-8	mgKOH/g	TM 2401
Viscosity @23℃	180-250	mPa.s	TM 2013
Gel time	50-70	minutes	TM 2625
Gel time	230-270	minutes	TM 2577

Notes:
TM2625: 2.0 g of curing agent Butanox? M50 was added to 100 g of resin at 25°C, respectively.
TM2577: 1.5g of hardener Butanox? M50 in 150g of resin in a water bath at 23℃.

Typical Properties of Liquid Resins

performances	numerical value	unit (of measure)	Test Methods
flash point	33	°C	TM 2800
storage period	3	moon	-25 °C

Typical Properties of Pure Resin Casting Body

performances	numerical value	unit (of measure)	Test Methods
tensile strength	80	MPa	ISO 527-2
tensile modulus	3.3	GPa	ISO 527-2
Tensile elongation at break	4.0	%	ISO 527-2
bending strength	130	MPa	ISO 178
bending modulus	3.4	GPa	ISO 178
heat distortion temperature	95	°C	ISO 75 Ae
Unnotched impact strength	19	kJ/m2	ISO 179

Note :
The curing system is: add 2.0 g of curing agent Butanox M50 to 100 g of resin. Cure at room temperature for 24 hours and at 80 °C for 24 hours.

Process Operation Guide

Recommended MEKP curing system, the amount of 1% ~ 2.5%. According to the different construction temperature and introduction time, you can adjust the amount of curing agent.

If used for small parts such as automobile parts, in the curing agent has reached the upper limit of the premise, you can add appropriate accelerator to shorten the gel curing time.

The time to remove the mold release cloth from the product is at least after the end of the exothermic period. Early removal of the film may lead to defects such as pre-molding of the product and poor curing of the surface.

Application Operation Guide

Products cured at room temperature must be post-cured to achieve optimum physical and chemical properties; before that, the products need to be cured at room temperature for 24 hours. For products that are not convenient for post-curing, it is recommended to leave them at room temperature for 24-48h before assembly and drilling.

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