In This Article
Before & After
This BMW Z3 roadster went from a tired factory finish to a crisp, showroom-clean white in BMW Alpine White (code 300) — the classic Alpinweiss that has defined the brand for decades. The whole repaint runs on the Alpha Automotive Paint system: DTM primer-sealer, Alpine White 300 basecoat, and HS Glamour clearcoat over a clean sealed foundation.
Here is how the build came together — the prep, the products, and the steps to bring the same factory Alpine White back on your own Alpine White 300 vehicle paint kit.
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Download the Free PDF →Meet the Builder: Z3 Build
This Z3 was sprayed on the exact same Alpine White 300 vehicle paint kit we ship to every customer. The system is the DTM primer-sealer, Alpine White 300 basecoat, HS Glamour clearcoat, plus urethane reducer, HS activator, and the TSS cheat sheet to keep the ratios dialed.
The Color: Why Alpine White 300?
BMW Alpine White 300 is the definitive BMW white — a clean, bright, non-metallic Alpinweiss matched precisely to code 300 as an OEMatch automotive basecoat. It is a 2-stage solid, so it lays down as a true, even white with no pearl or flake to chase.
Over a light, uniform sealer, Alpine White 300 reads bright and full, then takes on a deep, wet gloss under HS Glamour clear.
Want to spray a Alpine White 300 sample yourself?
This color doesn't have a pre-sprayed sample yet, but you can build your own DIY sample if you have spray equipment:
Every Way to Get Alpine White 300
Whether you're painting a full vehicle, a motorcycle, a guitar, or just touching up with a spray can — Alpine White 300 is available for every project size. Each kit includes matched products sized for the job.
BMW MOTORCYCLE ALPINEWEISS3.2C BMW300 | OEMatch Automotive Vehicle Paint Kit
$723.93 USD
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BMW MOTORCYCLE ALPINEWEISS3.2C BMW300 | OEMatch Automotive Basecoat
From$17.99 USD
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A factory white shows every ripple. Block the body dead-straight and keep your sealer even — Alpine White will reward the prep with a mile-deep, streak-free finish.
What's Inside the Vehicle Paint Kit
These are all the products included in the Alpine White 300 Full Vehicle Paint Kit. Every product is already matched and compatible — no hunting across brands, no guessing on ratios.
DTM Primer-Sealer (AP-7541) — The white sealer that gives Alpine White 300 a uniform, full-coverage foundation. AP-7541 DTM primer-sealer seals the bodywork so the color reads even across every panel.
Alpine White 300 Basecoat — The color coat. Alpine White 300 basecoat mixes 1:1 with reducer and builds in smooth, even coats.
HS Glamour Clear (AC-4521) — AC-4521 HS Glamour clearcoat lays the deep, glassy gloss over Alpine White 300 and locks in UV and chip protection.
Alpha Urethane Reducer — Alpha urethane reducer thins the basecoat to a spray-ready ratio for even, controlled coats.
HS Activator (AH-7100) — AH-7100 HS activator catalyzes the HS Glamour clear so it cures hard, clear, and durable.
TSS Cheat Sheet — The TSS cheat sheet keeps every mix ratio and flash window at your fingertips through the whole job.
Optional Add-Ons
The vehicle paint kit has everything you need to go from prepped surface to finished paint. But depending on where your project is starting, these add-on bundles can save time and money on the prep and masking side:
Bodywork Bundle
$175.00
Body filler, abrasives, and everything for panel repair. Ideal if your project needs dent or rust repair before paint.
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Light Bodywork Bundle
From $92.99
Dolphin Glaze finishing putty and OptiGrit sanding abrasives. Perfect for filling pinholes, minor scratches, and light surface imperfections.
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Mask & Mix Bundle
$75.00
Mixing cups, strainers, masking tape, and masking paper. Everything you need for clean, precise masking and easy paint mixing.
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Linear Blocking Tools Starter Set
From $236.50
CNC-cut polycarbonate sanding blocks with lifetime warranty. Produces perfectly flat, straight panels for a professional finish.
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OptiGrit PSA Sandpaper Bundle
$64.99
Complete PSA sandpaper set in 80, 180, 220, and 320 grit. The full grit progression for blocking and prep, sized for long boards.
Shop NowThe Complete DIY Process
Step 1: Prep & Bodywork
Every clean finish starts with the metal underneath. Block the body straight and knock down the old finish with OptiGrit abrasives before a single coat goes on — Alpine White 300 will telegraph every flaw left behind.
Step 2: DTM Primer-Sealer (White Sealer)
A white sealer of DTM primer-sealer is the foundation this color lays over. Shoot it uniform and let it flash before basecoat so the color reads full and true.
Step 3: Alpine White 300 Basecoat
Alpine White 300 basecoat mixes 1:1 with Alpha urethane reducer and builds in smooth, even coats. Let each coat flash fully — patience here is what keeps the finish deep and even instead of blotchy.
Step 4: HS Glamour Clearcoat
HS Glamour clearcoat, catalyzed with HS activator, is where the depth comes alive — it buries the color in gloss for that wet, glassy finish and gives you the UV and chip protection.
Step 5: Cut & Buff
Once the clear is fully cured, a light cut with fine OptiGrit and a buff brings Alpine White 300 to a mirror. Reference the TSS cheat sheet for ratios and flash windows so nothing gets rushed.
Ready to Paint Your Own Build?
Everything this repaint needs — DTM primer-sealer, OEM-accurate Alpine White 300 basecoat, HS Glamour clearcoat, reducer, activator, and cheat sheet — in one kit.
Build Your Alpine White 300 Kit — $723.93 USDLooking for a different color or kit size? Browse all car kits →
See It in Action
TSS painting tutorials and kit walkthroughs — the answers we get asked most.
Frequently Asked Questions
Yes. Alpine White 300 is an OEMatch automotive basecoat mixed to BMW code 300 (Alpinweiss III), so it matches original panels for a refresh or sprays uniformly for a full repaint. The vehicle paint kit includes everything to lay it down.
No — as a 2-stage solid white it goes over a clean, light sealer. A uniform DTM primer-sealer foundation gives full coverage and a bright, even white.
Yes — Alpine White 300 comes in an aerosol spray can for touch-ups and small panels, matched to the full-size basecoat.
Every Product Used in This Build
BMW MOTORCYCLE ALPINEWEISS3.2C BMW300 | OEMatch Automotive Vehicle Paint Kit
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BMW MOTORCYCLE ALPINEWEISS3.2C BMW300 | OEMatch Automotive Basecoat
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DTM Primer-Sealer AP-7541 Kit | Alpha Automotive Paint
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HS Glamour Clearcoat AC-4521 Kit | Alpha Automotive Paint
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Urethane Reducer AR-3000 Series | Alpha Automotive Paint
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HS Activator AH-7100 | Alpha Automotive Paint
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Limited Time Deals
Clearance & Flash Sales
Discounted kits, closeout colors, and flash deals — check back often, these move fast.
Shop Current Sales →A clean Alpine White on a Z3 is a timeless, factory-fresh look, and Alpine White 300 brings it back exactly. This is what these kits were built for.
Stay connected with the TSS paint community: follow tutorials and color reveals on YouTube, short-form builds on TikTok and Instagram, and join the Facebook community group.
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