BK Drying Recorders

The BK 3 Speed Drying Recorder has been used widely in the coatings industry throughout the world for several decades. A needle carrier holding six hemispherical ended needles travels the length of the six 305 x 25 mm test strips in 6, 12 or 24 hours. Other speeds are available to special order. A time scale on the side cover is graduated to suit the three different travel times.


The BK 6 and BK 10 Recorders have independently operating tracks allowing tests to be made at different start times. Pairs of tracks operate at the same speed, and a wide range of travel times are available. Travel times of 6, 12, 24 and 48 hours are all considered as standard. A time scale on the front cover is graduated to suit the instrument’s drying time ranges. Each pair of tracks has its own individual operating switch.

BK 6800 BK10800







Steel needles Hemispherical ended stainless steel needles.



Needles 1 2mm ball ended stainless steel needles.





Ball ended needles 5mm PTFE ball ended needles for specialist applications.



Teflon Needles Teflon coated needles for specialist applications (coated one end).



Brass weights 5 gram brass weights to increase needle load.





Casterguide ApplicatorPaint film applicators in stainless steel with gap sizes from 10-650 microns .





Glass strips Glass test strips



Casterguide Applicator Casterguide for use in conjunction with the paint film applicator