Streaking Brush vs Angular Streaking Brush: Gaia-brush Comparison
By Argama Hobby - Gundam Model Kits & a Pro Build Space for ... | Published: 2026-11-05
Category: Vertailut
Compare the Gaia-brush BS001 flat and BSA01 angular streaking brushes: both have comb tips, but the angled bristles change how you place rain and oil streaks.
Quick answer
Choose the Gaia-brush BS001 flat streaking brush for straight, parallel rain or oil streaks; choose the BSA01 angular streaking brush when you need to angle the comb tip into corners or follow curved surfaces without twisting your wrist.
What the comb tip changes
Both brushes carry a comb-shaped tip that lays down several distinct lines in one stroke, so you can build raindrop or oil-drip weathering without painting each line separately. The difference is the body: BS001 is a 1/2 inch flat brush, while BSA01 is a 1/2 inch angular brush with angled bristles. That angle shifts where the comb lines land relative to your hand, which matters most on sloped armor, curved fuel tanks, and recessed panel edges.
Where the flat BS001 wins
On flat surfaces such as a Gundam shield or a tank hull, the flat BS001 keeps all comb lines parallel to the brush edge. You can pull a single pass down a vertical panel and get an even set of streaks. The trade-off is that reaching into a corner or following a curve forces you to rotate the brush, which can smear the lines you just laid.
Where the angular BSA01 wins
The angled bristles on the BSA01 let you keep the comb tip flat against a sloped or curved surface while your hand stays in a comfortable position. That makes it easier to add streaks along the edge of a shoulder armor or around a cylindrical part. The trade-off is that the angle can make perfectly straight, long parallel lines slightly harder to control on a flat panel until you get used to the offset.
Checkered and fabric-like patterns
Both brushes can produce checkered patterns that resemble fabric grain when you cross strokes. Because the comb tip leaves multiple lines at once, you get a denser pattern with fewer passes. Neither brush is specifically sized for tiny 1/144 details; the 1/2 inch width is better suited to broader areas or larger scale models where you want visible weathering texture.
Trade-offs at a glance
- Line control on flat panels: BS001 keeps comb lines parallel to the brush edge, so long straight streaks are easier to repeat. BSA01's angled bristles can drift slightly unless you guide the tip deliberately. Test both on a primed plastic spoon before committing to a finished part.
- Reaching corners and curves: BSA01 lets you angle the comb tip into recesses and follow rounded surfaces while keeping your wrist neutral. BS001 requires you to rotate the brush, which can distort the streak pattern.
- Pattern density and speed: Both lay down multiple lines per stroke, so checkered or fabric-like patterns build quickly. The 1/2 inch width covers broad areas faster than a fine detail brush but is less precise for tiny parts. Use light pressure and thin paint; a loaded brush can flood the comb gaps and merge the lines.
Product facts
- Gaianotes Gaia-brush Series BSA01 - Angular Streaking Brush 1/2: BSA01 is a 1/2 inch angular brush with a comb-shaped tip and angled bristles. The angled bristles help you keep the comb lines against sloped or curved surfaces without tilting the handle.
Gaianotes Gaia-brush Series BSA01 - Angular Streaking Brush 1/2 - Gaianotes Gaia-brush Series BS001 - Streaking Brush 1/2: BS001 is a 1/2 inch flat brush with a comb-shaped tip. The flat edge gives you predictable parallel lines on flat panels, which is useful for straight rain streaks.
Gaianotes Gaia-brush Series BS001 - Streaking Brush 1/2
Which streaking brush should you get?
Best for
- Builders who mostly weather flat armor plates and want repeatable straight rain or oil streaks (BS001).
- Modelers working on curved or sloped surfaces who want to keep the comb tip flat without awkward wrist angles (BSA01).
Not for
- Anyone expecting a single brush to handle both flat and curved surfaces perfectly; the two models complement each other.
- Very small 1/144 detail work where a 1/2 inch comb tip is too wide for controlled placement.
