This is a question Ive heard asked numerous times and always wondered myself. Ive heard a wide range of speculation but never an accurate answer
until now.
I recently had the opportunity to use an incredibly accurate scale to weigh a frame I built prior to and following powdercoating. The frame is a 24 BMX cruiser.
The process used in this example is a single stage (no primer or clear top coat) Polyester / TGIC applied via an automated system which also includes a trip through a spray wash tunnel, an iron phosphate bath, and dry-off / pre-heat oven then sprayed and baked.
The result was an increase in weight of 33.054g / 1.166 oz.
Disclaimer: This was applied by an automated system. Different powdercoating systems, machine settings, operator skill, and even powder may all have an effect on the finished powder thickness and may result in a different weight (although probably not by much).
Obviously multiple stage applications and significantly larger frames (eg: tandems) will result in an increased weight than what I measured.
I will do this test again when I finish another frame. Ill report back at that time.
Take care,
Greg
I recently had the opportunity to use an incredibly accurate scale to weigh a frame I built prior to and following powdercoating. The frame is a 24 BMX cruiser.
The process used in this example is a single stage (no primer or clear top coat) Polyester / TGIC applied via an automated system which also includes a trip through a spray wash tunnel, an iron phosphate bath, and dry-off / pre-heat oven then sprayed and baked.
The result was an increase in weight of 33.054g / 1.166 oz.
Disclaimer: This was applied by an automated system. Different powdercoating systems, machine settings, operator skill, and even powder may all have an effect on the finished powder thickness and may result in a different weight (although probably not by much).
Obviously multiple stage applications and significantly larger frames (eg: tandems) will result in an increased weight than what I measured.
I will do this test again when I finish another frame. Ill report back at that time.
Take care,
Greg