Cerakote finish is a top-of-the-line ceramic coatings that has been developed to provide superior protection and aesthetics for firearms, automotive parts, tools and more. One of the most important factors in determining the performance of a Cerakote finish is a consistent Ra value.
The Guyson Non-Periodic Blast Specimen Gauge
Ra value, also known as surface roughness average (SRA), is the arithmetic mean of the absolute values of the surface profile deviations from their mean line.
Guyson Corporation started the Guyson Instituted of Standards to develop a third party verified blast specimen to ensure that you can guarantee the Ra Value of your product.
Using a profilometer, you measure the results in an average number which indicates how smooth or rough a surface is. This will guarantee a specific Ra value for deciding on how effective a Cerakote finish will be when applied.
Using a Guyson Non-Periodic Specimen Gauge with a profilometer will confirm the accuracy and consistency of your blast finish.
Guyson has done considerable testing for what is the best Ra value for a proper, long lasting finish. Each of our test coupons were blind durability tested at the Cerakote factory. Proving that the Guyson finish was more durable than the recommended finish.
Guyson Metal bead media for a proper Cerakote finish when using our AR Max wheel blast system.
Guyson Corporation has a specific branded wheel blast metal bead recipe media that is not produced by any other finishing company. As far as we know, we are the only company that allows you to use metal bead finish for a proper Cerakote finish.
The new Guyson Non-Periodic blast specimen will give you the most accurate measurement over and over again to always maintain that finish. This means that if a firearm has a more consistent Ra value, it will better accommodate a Cerakote finish. This ensures that enough detail and texture are present in order for Cerakote to have maximum adhesion and wear resistance after application.
In conclusion, Ra value is an essential factor to consider when applying Cerakote finish for optimal performance and durability. Firearms with more consistent SRA values should be preferred due to their better ability to hold onto the ceramic coating’s molecules and make them much less prone to chipping and scratching over time compared to smoother surfaces. Ultimately, the Guyson Non-periodic Blast Specimen will give you accurate knowledge on your material’s surface roughness and can help you achieve the maximum effect from your Cerakote finish application.
