What kind of sand did the Germans use for texturing their paint?
The Germans did not use sand to texture the paint. Imagine the results of running sand through industrial sprayers. Just as if you mixed sand with the motor oil of your car. You’d be calling a tow-truck pretty soon. The Germans used an aluminum-oxide powder beginning in 1940. Look at helmets that are repainted today and have sand added to the paint. The resulting look is clearly different from original textured helmets.