Apollo Gold High-Solids “B” Cap for the Apollo 7500 & 7700 Series Spray Guns
The Apollo Gold High-Solids “B” Cap is an air cap designed for Apollo 7500 & 7700 Series Spray Guns when spraying thicker, high-build coatings like primers, urethanes, and high-solids finishes.
On its own, it’s just the atomizing cap component (not a full spray gun kit), and it’s specifically the “HS” (High Solids) version of the standard B-cap.
What it’s used for
Built for high-viscosity coatings (thicker paints and industrial finishes)
Works with larger fluid setups, typically:
~1.0 mm to 1.5 mm setups (high-solids B-cap pairing)
Optimized for better atomization of heavier material without excessive thinning
What makes the “B HS” cap different
Compared to the standard B cap:
Designed to move more air and material
Produces a softer, wetter spray pattern for heavy coatings
Helps reduce orange peel when spraying thick finishes
According to Apollo’s cap system:
B HS cap = mid-range fluid sizes (about 1.0–1.5 mm) for high-solids materials
It sits between fine finish caps (A/clear coat) and heavy caps (C/D for very thick materials)
Compatibility note
It only fits:
Apollo 7500 Series Spray Gun
Apollo 7700 Series Spray Gun
If you’re spraying:
Cabinets, urethanes, waterborne finishes → this cap is often a good match
Very thin lacquer → it’s overkill (use a clear/A cap instead)
Very thick primer or latex wall paint → you’d usually step up to a C HS cap
WARNING: This product can expose you to chemicals including Nickel which is known to the State of California to cause cancer. For more information go to www.P65Warnings.ca.gov.
WARNING: This product can expose you to chemicals including Nickel which is known to the State of California to cause cancer. For more information go to www.P65Warnings.ca.gov.
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