Stone Adhesive: The influence of the added amount of hardener on the viscosity of sintered stone

Sintered Stone Adhesive

Standard Parameter:

Viscosity cps 25°C 20 r.p.m: tixotropic liquid

Density at 25°C gr/cm³: A:1.35±0.15 B: 1.25±0.15

Aspect/appearance: coloured cream

Ratio of use glue/hardener: 100:1-3(by weight)

Gel time (in bulk) at 25°C in min: 4-8 mins

Time for handling pieces: Aprox 10-15 mins

Working time suggested at 25°C in min : 25-35 mins

Minimum reaction temperature: -10°C

Min temperature of use after hardening: -25°C

Max temperature of use after hardening: +110°C

Shelf life at 25°C: 12 months

In Conclusion:

After 30 minutes, the No. 2 sample with the standard amount of hardener is completely ready for subsequent polishing and cutting processes.

The No. 1 sample with  little hardener amount has not been hardened yet. Even though ,the curing time of Sample No. 3 with extra hardener amount is short, it is not strong enough.

Therefore, if you choose to use hardener to your sintered stone adhesive, we suggest to use the standard amount 1%-2%(summer) and  2%-3%(winter) , and make sure stir the hardener and adhesive thoroughly.

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