r410a air conditioning

I am not familiar with stay- brite 8. I am assuming it is the manufactures trade name for their product. I use a product called sillfos. They sell solder with both 5 and 15% silver content. I prefer the 15% as it more durable and the flow rate during soldering is better. With the very high operating pressures in a R-410a system I will not go below a 15% silver content solder.