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Linear Blocking Tools 1" Round Set
Regular price $150.00 USD$150.00 USD Regular priceUnit price per$140.00 USDSale price -
Linear Blocking Tools Hyper Flex Detail Set
Regular price $165.00 USD$165.00 USD Regular priceUnit price per$150.00 USDSale price -
Linear Blocking Tools 44" BAMF Sanding Block
Regular price From $210.00 USDFrom $210.00 USD Regular priceUnit price per$180.00 USDSale price -
Linear Blocking Tools Labor Saver to Master Set
Save 16%Regular price From $625.00 USDFrom $625.00 USD Regular priceUnit price per$748.00 USDSale priceSale -
Linear Blocking Tools Rigid Set
Save 15%Regular price From $355.00 USDFrom $355.00 USD Regular priceUnit price per$417.00 USDSale priceSale -
Linear Blocking Tools Ultra Flex Set
Save 15%Regular price From $430.00 USDFrom $430.00 USD Regular priceUnit price per$505.00 USDSale priceSale -
Linear Blocking Tools Semi Flex Set
Save 15%Regular price From $395.00 USDFrom $395.00 USD Regular priceUnit price per$464.00 USDSale priceSale -
Linear Blocking Tools Starter Set to Master Set
Save 20%Regular price From $865.00 USDFrom $865.00 USD Regular priceUnit price per$1,078.00 USDSale priceSale -
Linear 150g Dry Sandpaper (STICKY BACKED)
Regular price $48.99 USD$48.99 USD Regular priceUnit price per$48.99 USDSale price -
Linear 240g Dry Sandpaper (STICKY BACKED)
Regular price $48.99 USD$48.99 USD Regular priceUnit price per$48.99 USDSale price -
Linear 320g Dry Sandpaper (STICKY BACKED)
Regular price $48.99 USD$48.99 USD Regular priceUnit price per$48.99 USDSale price -
Linear 500g Dry Sandpaper (STICKY BACKED)
Regular price $48.99 USD$48.99 USD Regular priceUnit price per$48.99 USDSale price -
Linear 80g Dry Sandpaper (STICKY BACKED)
Regular price $48.99 USD$48.99 USD Regular priceUnit price per$48.99 USDSale price -
TrueFill Premium Body Filler
Regular price $63.99 USD$63.99 USD Regular priceUnit price per$63.99 USDSale price -
SaleLong Gap Kit
Save 30%Regular price $70.00 USD$70.00 USD Regular priceUnit price per$100.00 USDSale priceSale -
SaleBodywork Bundle
Save 6%Regular price $175.00 USD$175.00 USD Regular priceUnit price per$186.99 USDSale priceSale
Automotive Body Work Supplies — Prep Right, Paint Right
Great paint starts with great prep. The Spray Source carries everything you need to repair dents, fill imperfections, and build a smooth foundation before primer and paint. From polyester fillers to mixing supplies, this collection has your body work covered.
Body Fillers
TrueFill Premium Body Filler — Lightweight polyester filler with excellent filling properties and a smooth, easy-to-sand finish. Apply in thin layers up to 3mm total thickness. Cures in 30–35 minutes at 68°F. For best results, apply over Alpha AP-5511 Epoxy Primer.
U-Pol Dolphin Finishing Glaze — Fine finishing putty for skim-coating minor imperfections after initial filler work. Spreads thin, sands smooth, and bridges the gap between body filler and primer.
Spray Glaze
Alpha Spray Glaze — Sprayable polyester putty for smoothing large surfaces evenly. Mix at 100% glaze + 4.5% hardener, spray with a 1.8–2.5mm nozzle, and sand with P180–P360 grit after curing. Perfect for achieving panel-flat surfaces before sealer.
Sanding & Blocking
Block sanding is critical for a flat finish. Use Linear Blocking Tools — rigid boards for flat panels, semi-flex for slight contours, and ultra-flex for complex curves. Start coarse (P80–P120) for shaping, finish at P280–P360 before primer. Use a cross-hatch sanding pattern for even material removal.
The Right Order
Strip or sand → body filler → block sand → spray glaze (if needed) → block sand again → epoxy primer → sealer → basecoat → clearcoat. Every step matters. For a full walkthrough, see our How-To & Techniques blog.















