Working with XPS foam (extruded polystyrene) is a dream for model makers, terrain builders, architects, and DIY crafters alike. But to get clean cuts, detailed finishes, and strong construction, you need the right tools by your side.
Here are the top 3 tools we recommend for anyone crafting with XPS foam:
🔪 1. Hot Wire Cutter
If you’ve ever tried slicing XPS foam with a regular knife, you know the struggle—messy edges, tearing, and endless foam dust. A hot wire cutter changes everything.
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Why it’s essential: It slices through foam like butter, giving you smooth, accurate cuts without the mess.
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Best for: Shaping terrain, carving curves, slicing large sheets.
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Pro tip: Let the wire do the work—don’t force it!
✂️ 2. Hobby Knife Set
A sharp blade is a must-have for precision work. A hobby knife set with multiple blade types gives you flexibility for fine details and controlled carving.
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Why it’s essential: Great for trimming, engraving, and detail work.
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Best for: Cutting grooves, stone or brick effects, clean edges.
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Pro tip: Replace blades regularly—XPS dulls them quicker than paper or card.
🧴 3. Foam-Safe Adhesive (or PVA Glue)
Not all glues play nice with XPS foam—some can actually melt it. That’s why foam-safe adhesives are crucial for a clean, long-lasting bond.
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Why it’s essential: Safe, strong, and compatible with polystyrene.
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Best for: Layering foam, attaching details, building durable structures.
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Pro tip: PVA glue is a great all-rounder. For stronger joins, try a contact adhesive specifically labelled foam-safe.
🧠Bonus Tip: Sealing Before Painting
Before you reach for the paintbrush, seal your XPS foam with Mod Podge or watered-down PVA glue. This step helps the paint stick better, reduces absorption, and adds a layer of protection.