Afcona 7520

Afcona 7520

Fluorocarbon modified polyacrylic

Anti-crater, substrate wetting and leveling agent for solvent-based coatings

AFCONA-3670 is an improved version of AFCONA-3777 on managing surface control of coatings. It has lower surface tension than AFCONA -3777. The combination with a suitable polysiloxane for better overall performance is highly recommended. Due to the fluorocarbon modification, it gives lower surface tension than normal pure acrylic leveling agents. Therefore, it gives better anti-crater and improved substrate wetting.

The obvious performances of AFCONA-3670 are:
1. improve leveling
2. prevent craters
3. help substrate wetting
4. act as a defoamer and de-aeration aid
5. do not interfere with intercoat adhesion

AFCONA-3670 is suitable for all solvent based coatings, especially:
1. baking paints, as leveling and anti-crater agent
2. PU coatings, as leveling, anti-crater and anti inner bubble agent
3. epoxies, as leveling and anti-crater agent

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Acidic functional block polymer

Block polymer with acidic functional with viscosity depressing property

AFCONA – 7520 is recommended for UPE, PVC, epoxy and polyurethane resin systems. AFCONA – 7520 is very close to AFCONA – 7500 but with different modification. Thus the performance is very close but in different resins, both may behave differently in viscosity depressing. It has very good viscosity depressing property in high filled system. Thus it is very suitable for high ATH system or artificial marble industrials. AFCONA – 7520 also effective as anti-separation additive in combination resins systems, such as PS(polystyrene) and/or SBS(styrene butadiene rubber) with UPE resin

Due to it high acidic functional, AFCONA – 7520 also can be used in BMC system as viscosity stabilizer. AFCONA – 7520 also has very good wetting power to fiber glass.

Additional information