ACDelco touch-up paint pen Switchblade Silver Metallic WA636R .5 oz — 4-in-1 applicator, factory color match

ACDelco's GM Original Equipment Switchblade Silver Metallic (WA636R) is a .5 oz four‑in‑one touch‑up paint pen engineered to match factory GM finishes and repair small to medium chips and scratches.

This compact repair pen puts factory‑matched paint and a multi‑tool applicator into one handheld unit so you can quickly restore your vehicle’s finish between professional paint jobs. Designed and validated for GM vehicles, the ACDelco four‑in‑one system includes a prep tip to remove loose paint and corrosion, a piston pen tip for precise dispensing, and a tapper brush for broader coverage. The .5 oz size is formulated to deliver smooth, even coats on chips and shallow gouges and is convenient to store in a glove box or toolbox for on‑the‑spot touch ups.

How does this pen help fix chips and small scratches?

The pen combines surface prep and paint application in one tool so you can remove loose material and then deposit color accurately. The piston tip dispenses controlled amounts of paint for fine defects, while the brush spreads paint smoothly over larger blemishes.

• Prep tip abrades and clears rust or flaking paint for better adhesion
• Piston pen tip allows targeted paint delivery into narrow scratches
• Tapper brush provides even coverage for chips and shallow gouges
• Factory color match minimizes visible contrast after curing

Will the WA636R Switchblade Silver Metallic match my GM vehicle?

Yes — the paint is formulated to match GM factory color codes, including WA636R Switchblade Silver Metallic. Use the GM paint code on your vehicle to confirm the match before applying.

• Paint corresponds to the GM factory color code printed on your vehicle
• OE‑grade formulation gives consistent tone and metallic blend
• Best results when applied to clean, prepped surfaces per instructions

How do I use the four‑in‑one applicator correctly?

Start by using the abrasive prep tip to remove loose paint, rust, and debris. Next, apply small amounts using the piston pen tip for precision, and finish by blending and smoothing with the brush tip for a uniform look.

• Use the pointed prep edge for narrow scratches and flat face for larger areas
• Dispense small pulses with the piston tip; multiple thin coats beat one thick coat
• Brush light strokes to blend edges and match surface texture
• Allow proper drying time between coats for durable finish

How durable and practical is this .5 oz pen for everyday use?

The half‑ounce size balances portability with enough paint for several small repairs. While not a full respray solution, it offers a practical way to protect exposed metal and improve appearance until professional refinishing is feasible.

• Compact pen fits glove box or tool kit for quick touch ups
• OE materials provide consistent finish for everyday wear points
• Ideal for parking lot dings, door edge chips, and stone‑chip areas

Who is this for? Automotive owners and DIY maintainers who drive GM vehicles and want an OEM‑matched, convenient repair option for minor paint damage will benefit most from the ACDelco Switchblade Silver Metallic WA636R touch‑up pen. It’s geared toward people who need an on‑hand solution to stop corrosion and restore appearance between professional touchups. If you require a complete panel respray or have deep structural damage, consult a body shop; for chips, scratches, and small exposed areas, this OE‑validated pen offers an effective, factory‑matched repair tool.