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Monsterblocks: Professional Car Longboard Sanding Blocks
Welcome to the Monsterblocks range by Amaxi Products—the best solution for tackling large surface areas with absolute precision.
Developed by an experienced spray painter, these blocks are engineered to prevent digging and high spots when shaping filler or blocking primer on large car panels. When you need to get a large panel dead straight, standard blocks simply won't cut it. Amaxi Monsterblocks deliver the consistent, even pressure required for a flawless, ripple-free finish. We are proud to be the premier supplier of car longboard sanding blocks designed specifically for the Australian automotive trade.
Multi-Blocks: Premium Dual-Surface Sanding Blocks
Amaxi Product’s Multi-Block isn't just a sanding block; it's two essential tools engineered into one. Stop reaching for a different tool every time the panel shape changes; our innovative dual-surface sanding blocks feature one firm side for blocking out flat panels, and one super-soft side for following complex curves and contours.
Engineered by an experienced spray painter for the Australian automotive trade, the Amaxi Multi-Block delivers both the rigidity you need for flattening filler and the flexibility required for delicate body lines, all in the palm of your hand.
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Firm or Soft? Versatile Sanding Blocks for Every Panel
The Firm Side
The rigid side is engineered to cut down body filler, knock off high spots, and ensure absolute flatness across straight panels or gentle sweeps. It provides the firm, even pressure needed to reveal imperfections without flexing prematurely.
The Super-Soft Side
The highly flexible side is designed for fine finishing work, primer blocking, and conforming perfectly to tight radii, swage lines, and complex curves without digging in or altering the factory profile.
Whether you are working on a classic restoration or a quick daily driver repair, these firm and soft sanding blocks drastically reduce tool-switching time. By combining two distinct densities into a single unit, Amaxi Products offers the most versatile sanding blocks in your workshop arsenal.
Multiple Sizing: Small, Standard, & Long
The Multi-Block Small: The nimble detailer. Perfect for tight corners, bumper repairs, and localised spot repairs where a larger block is too clumsy to manoeuvre.
The Multi-Block Standard: The everyday workhorse. Ideal for standard door dings, quarter panel curves, and general primer blocking. Fits comfortably in one hand for effortless single-handed control.
The Multi-Block Long: The two-handed leveller. Designed for spanning larger repairs and ensuring consistency across medium-to-large panel sections while retaining that crucial dual-surface flexibility.
Professional Grade, Built for the Trade
Ergonomic Comfort
Our multi-surface sanding tools are ergonomically shaped to fit naturally in your hand, reducing fatigue during long hours of blocking in the prep bay.
Durable Construction
Manufactured with high-grade, chemical-resistant EVA, these blocks are designed to handle light solvent exposure, water, and the daily demands of a busy commercial body shop.
Wet or Dry Versatility
Fully compatible with both wet and dry sanding techniques, ensuring consistent performance whether you are dry-blocking filler or wet-sanding primer.
Bodyshop owners, trade students, and classic car clubs across the country rely on Amaxi Products for flexible automotive sanders that deliver trade-quality durability paired with local, Australia-wide shipping and support.
Simplify Your Sanding Process. Add the Multi-Block to Your Arsenal Today.
Don't compromise on your finish by constantly swapping tools. Equip your workshop with Amaxi Product’s Multi-Blocks: the dual-surface sanding block designed for perfect results on any curve, proudly shipped Australia-wide. Shop our Multi-Blocks or bundle kits today!
Your Questions Answered
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Multi-Blocks are designed to be used with standard abrasive rolls or sheets using a simple "wrap and hold" technique. No specialised backing or adhesive is required.
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Yes. The super-soft side is excellent for wet sanding colour or clear coats before buffing and polishing, as it conforms effortlessly to contours without creating severe pressure points.
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Absolutely. The dual-density design is ideal for fairing out curved boat hulls, jet skis, or aircraft fuselages where maintaining smooth transitions on fibreglass is essential.
The Ultimate Automotive Longboard Sander
Our Monsterblock range isn't just another set of sanding blocks. We meticulously designed and upgraded them to outperform cheap, generic alternatives.
Hardened EVA Construction
The secret to the perfect automotive longboard sander lies in the material. Our Monsterblocks feature a 35mm-thick, hardened EVA foam construction. This provides the perfect balance: they are rigid enough to find high and low spots, yet flexible enough to follow long, gentle panel curves like those found on doors and quarter panels.
PSA vs. Hook (V-Series) Options
We know every workshop operates differently, which is why we offer two distinct systems:
PSA (Pressure Sensitive Adhesive): Ideal for traditional sticky-back sandpaper rolls. You can also use the popular 'fold and hold' method with standard 115mm sandpaper rolls.
V-Series: Designed for modern hook-and-loop sanding strips, allowing for rapid abrasive changes to keep your shop moving efficiently.
Whether you choose the PSA or Hook system, an Amaxi automotive longboard sander ensures maximum control when using a two-handed blocking technique.
From 280mm to 600mm: Precision for Every Panel
Choosing the right block size is crucial to achieving a perfectly flat finish without fighting the vehicle's natural contours.
The 300mm Car Sanding Block (and 280mm V-Series): The versatile workhorses of the shop. Perfect for medium-length surfaces where maneuverability is key, but a standard block is just too short to bridge the gaps.
The 450mm (and 420mm V-Series) Blocks: Ideal for standard door panels, bonnets, and boot lids. These blocks provide a wide footprint for aggressive filler shaping.
The 600mm (and 560mm V-Series) Blocks: The true "Monsters." These are essential for blocking out massive, flat expanses like van sides, station wagon roofs, or long classic car quarter panels.
Kits & Bundles: Want the complete arsenal? We offer 3pc and 4pc Monsterblock Kits, giving your workshop the exact tools needed for any blocking stage in one convenient purchase.
Premium Monsterblocks in Australia
Amaxi Products is positioned as the premier, trusted choice for professionals. When you choose our tools, you are choosing a product designed with a deep understanding of the trade.
Built by a Spray Painter: We don't just manufacture plastic; we understand the tactile feel required for high-end automotive refinishing.
Consistent Surface Pressure: The hardened EVA prevents the "finger digging" effect that ruins guide coats and creates wavy clear coats.
Local Support & Delivery: We are proudly shipping the best monsterblocks Australia-wide. From our base in Dandenong South, VIC, directly to your workshop door, we provide the reliable service local tradespeople expect.
When you need professional longboard sanders, you need Amaxi Products.
Achieve a Flawless, Ripple-Free Finish. Upgrade Your Blocking Arsenal Today
Don't compromise your final clear coat with uneven bodywork. Equip your shop with Amaxi Product’s Monsterblocks: the professional car longboard sanding blocks designed for real results. Shop our Monsterblocks or bundle kits today!
Your Monsterblock Sanding Questions Answered
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This depends on your workshop's workflow. The PSA blocks are great for traditional sticky-back roll paper and are highly cost-effective. The V-Series (Hook) blocks are preferred in modern production shops because they allow for incredibly fast abrasive changes.
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Monsterblocks have a slight flex that is perfect for following gentle, sweeping curves (like long door panels). However, if you are working on tight or complex curves, we recommend looking at our 'Radblocks' or 'Flexi' range for better contouring.
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Yes! Standard 115mm rolls work perfectly with our PSA blocks using the 'fold and hold' technique.
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Absolutely. We support the next generation of the trade. Trade accounts and wholesale kits are available for automotive students and training facilities.