loc-tite actually makes a primer that is recommended for use with their products, #736 aerosol primer. Basically, it's made of trichloroethylene and isopropyl alcohol. I would think that acetone, isopropyl alcohol(the 90% stuff), or even Brakekleen from crc would work. it just strips off and washes away any oils left behind from manufacturing the nut, bolt, or whatever have you.