{"product_id":"spta-6-inch-dual-action-backing-plate-2-pack-bp604-5-16-24-thread-hook-loop-flexible-rim","title":"SPTA 6-Inch Dual Action Backing Plate 2-Pack (BP604) – 5\/16\"-24 Thread, Hook \u0026 Loop, Flexible Rim","description":"\u003cp\u003e\u003cstrong\u003eSPTA's 6-inch universal dual-action backing plate is a reinforced, hook-and-loop mounting pad made to attach to most DA polishers with a 5\/16\"-24 spindle for sanding, buffing, polishing, and finishing tasks.\u003c\/strong\u003e\u003c\/p\u003e\n\n\u003cp\u003eThis backing plate (model BP604) provides a balanced combination of flexibility and support so pads follow contours while remaining securely attached during high-speed dual-action polishing. Engineered with a durable core, flexible rim, and a strong hook-and-loop surface, it suits foam, microfiber, and wool pads and fits many random-orbit polishers rated up to 12,000 OPM.\u003c\/p\u003e\n\n\u003ch3\u003eWill this backing plate fit my DA polisher?\u003c\/h3\u003e\n\u003cp\u003eThe SPTA BP604 is built to work with polishers that use a standard 5\/16\"-24 threaded spindle. Its universal mounting pattern and common sizing make installation straightforward on the majority of random-orbit and dual-action machines.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eStandard 5\/16\"-24 thread to match most DA polishers\u003c\/li\u003e\n  \u003cli\u003e6-inch diameter supports common 5\" polishing pads\u003c\/li\u003e\n  \u003cli\u003eCompatible with machines rated up to 12,000 OPM\u003c\/li\u003e\n  \u003cli\u003eWorks with foam, wool, and microfiber hook-and-loop pads\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eHow does the backing plate handle curves and edges?\u003c\/h3\u003e\n\u003cp\u003eThe plate combines a reinforced center with a flexible outer edge so the pad keeps contact with curved panels without excessive stiffness. This balance reduces chatter and helps produce an even finish across compound curves and gentle contours.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eFlexible peripheral rim follows body lines\u003c\/li\u003e\n  \u003cli\u003eImpact-resistant core stabilizes higher-speed operation\u003c\/li\u003e\n  \u003cli\u003eVibration-dampening design for smoother user feel\u003c\/li\u003e\n  \u003cli\u003eMaintains pad contact to reduce uneven polishing\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eWhat types of pads and tasks are best for this backing plate?\u003c\/h3\u003e\n\u003cp\u003eWith its hook-and-loop face, the BP604 accepts a wide range of pads for sanding, compounding, polishing, and finishing. Use it with coarse sanding discs or soft finishing pads depending on the stage of your detailing process.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eHook-and-loop surface for quick pad swaps\u003c\/li\u003e\n  \u003cli\u003eSuitable for sanding discs, cutting pads, and finishing pads\u003c\/li\u003e\n  \u003cli\u003eMedium density supports multi-stage detailing workflows\u003c\/li\u003e\n  \u003cli\u003eIdeal for automotive, marine, and RV surface work\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eIs installation and maintenance difficult?\u003c\/h3\u003e\n\u003cp\u003eInstallation is quick: thread the plate onto a 5\/16\"-24 spindle and press your hook-and-loop pad into place. The plate requires minimal upkeep—keep the hook surface free of debris and inspect the thread and pad face regularly for wear.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eThread-on installation to a 5\/16\"-24 spindle\u003c\/li\u003e\n  \u003cli\u003eClean hook surface with compressed air or brush\u003c\/li\u003e\n  \u003cli\u003eInspect for wear before heavy jobs to ensure safety\u003c\/li\u003e\n  \u003cli\u003eReplace when hook loop retention or flexibility degrades\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cp\u003eWho is this for: The SPTA 6\" universal backing plate is aimed at professional detailers, hobbyists, and DIYers who need a reliable, versatile pad mount for dual-action polishers. If you use foam, wool, or microfiber pads and operate polishers with a 5\/16\"-24 thread—especially for cars, boats, or RVs—this backing plate gives a durable, flexible platform for routine sanding, buffing, and finishing tasks.\u003c\/p\u003e\n\u003csection class=\"product-faq-snippet\"\u003e\u003ch3\u003eFAQ\u003c\/h3\u003e\n\u003cdiv class=\"faq-item\"\u003e\n\u003cp class=\"faq-q\"\u003eQ: Does this backing plate fit my 5\/16\"-24 threaded polisher?\u003c\/p\u003e\n\u003cp class=\"faq-a\"\u003eA: Yes, it is made for polishers with a standard 5\/16\"-24 spindle and supports most DA machines up to 12,000 OPM.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"faq-item\"\u003e\n\u003cp class=\"faq-q\"\u003eQ: Can I use this with foam and wool pads?\u003c\/p\u003e\n\u003cp class=\"faq-a\"\u003eA: Yes, the strong hook-and-loop surface accepts foam, wool, and microfiber pads for sanding, compounding, and finishing.\u003c\/p\u003e\n\u003c\/div\u003e\u003c\/section\u003e","brand":"SPTA","offers":[{"title":"Default Title","offer_id":55165834166615,"sku":"B0FT2LVD74","price":38.54,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1050\/1524\/7191\/files\/spta-backing-plate-front-view.jpg?v=1790358413","url":"https:\/\/britishgarage.co.uk\/products\/spta-6-inch-dual-action-backing-plate-2-pack-bp604-5-16-24-thread-hook-loop-flexible-rim","provider":"British Garage","version":"1.0","type":"link"}