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Save $10.94 USD
Vendor:TamcoTamco HH-3100 Universal Primer Hardener 8 oz
Regular price $19.00 USDRegular price$29.94 USD-$10.94 USD Sale price $19.00 USD -
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Vendor:TamcoTamco HR-1380 Slow Urethane Reducer 1 Qt
Regular price $22.00 USDRegular price$36.97 USD-$14.97 USD Sale price $22.00 USD
Tamco Automotive Coatings & Primers
If you’re building a clean, durable finish, Tamco is a trusted name in the custom and refinish world. In this collection you’ll find carefully chosen Tamco essentials that support priming and top-coat workflows—made to deliver smooth application, predictable flash times, and great long-term durability whether you’re spraying parts, panels, or full projects.
What you’ll find in this collection
At the moment this page highlights high-demand support products that pair with primers and color systems:
• HH-3100 Universal Primer Hardener (8 oz) – A reliable activator designed to give Tamco 2K primers the right cure profile for strong adhesion and sandability.
• HR-1380 Slow Urethane Reducer (1 qt) – A temperature-friendly reducer that helps your material lay down smoother and flow out with fewer dry spots in warm conditions.
These are the small but critical components that make your entire coating system look better and last longer.
Why Tamco for your workflow
Consistent results. Tamco’s reducers and hardeners are formulated to match their primers and clear systems, so you get repeatable cure and gloss—job after job.
Finish quality. Using the correct hardener and reducer improves flow, limits orange peel, and helps your primer block out to a flat surface, which is the foundation of a show-quality top coat.
Value and availability. Tamco products offer professional performance without an inflated price tag, and SprayGunner keeps popular items ready to ship quickly.
Picking the right product
When to choose HH-3100 Hardener
Use HH-3100 with compatible 2K primers to activate the chemical cure. It boosts adhesion, builds a sandable surface, and shortens turnaround. If your primer is staying soft or clogging paper, you’re likely missing the proper hardener or the mix ratio.
When to choose HR-1380 Reducer
Reach for a slow reducer in warmer shops or on larger panels to extend flash time. The additional open time lets the film level out, reducing dry-spray and improving gloss holdout. For cooler shops or small parts, step to a faster reducer from the Tamco family.
General tips
• Always confirm mix ratios on the can or tech sheet for your specific primer.
• Spray a test pass on a card to check atomization before moving to the part.
• Maintain adequate air movement and booth filtration for consistent flash.
• Allow full cure before sanding; then block with progressively finer grits for a flat base.
Who this collection helps
• Custom shops dialing in kandy, metallic, or pearl finishes that demand a flawless base.
• DIY refinishers looking for dependable, easy-to-use components that match professional results.
• Modelers and prop builders who need automotive-grade durability on complex parts.
Why buy from SprayGunner
You get fast shipping, friendly USA-based support, and a team that actually sprays—so we can help you choose the right hardener/reducer pair for your project and shop temperature.