{"product_id":"loctite-660-high-strength-retaining-compound-large-gap-repair","title":"Loctite 660 High-Strength Retaining Compound – Large Gap Repair","description":"\u003cp\u003e\u003cstrong\u003eLOCTITE® 660\u003c\/strong\u003e is a one-part, high-strength anaerobic retaining compound for repairing worn cylindrical metal assemblies without re-machining. Its metallic-gray, thixotropic paste fills larger gaps and is well suited to worn bearing seats, shafts, keys, splines, tapers, and retaining shims.\u003c\/p\u003e\n\u003ch2\u003eWhy choose LOCTITE 660\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003eRestores fits on worn cylindrical metal parts without re-machining\u003c\/li\u003e\n\u003cli\u003eHigh-strength, very high-viscosity formula with excellent gap cure\u003c\/li\u003e\n\u003cli\u003eFills diametrical gaps from 0.25–0.50 mm (0.01–0.02 in.)\u003c\/li\u003e\n\u003cli\u003eHelps resist loosening and leakage caused by shock and vibration\u003c\/li\u003e\n\u003cli\u003eOne-component formula—no mixing required\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003ePopular applications\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003eWorn bearing seats and spun bearings\u003c\/li\u003e\n\u003cli\u003eDamaged keyways, keys, and splines\u003c\/li\u003e\n\u003cli\u003eSlip-, press-, and shrink-fitted cylindrical assemblies\u003c\/li\u003e\n\u003cli\u003eRetaining shims and repairing worn shafts or tapers\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eTechnical specifications\u003c\/h2\u003e\n\u003ctable\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003cth\u003eTechnology \/ chemistry\u003c\/th\u003e\n\u003ctd\u003eAcrylic; urethane methacrylate\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eCure\u003c\/th\u003e\n\u003ctd\u003eAnaerobic; secondary cure with activator\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eAppearance\u003c\/th\u003e\n\u003ctd\u003eMetallic-gray paste\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eComponents\u003c\/th\u003e\n\u003ctd\u003eOne component\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eViscosity at 25 °C\u003c\/th\u003e\n\u003ctd\u003e150,000–350,000 mPa·s (cP) at 5 rpm; 1,000,000–2,000,000 mPa·s (cP) at 0.5 rpm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eFixture time\u003c\/th\u003e\n\u003ctd\u003e15 minutes (typical; substrate, gap, and temperature affect cure)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eGap fill\u003c\/th\u003e\n\u003ctd\u003e0.25–0.50 mm (0.01–0.02 in.)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eCompressive shear strength\u003c\/th\u003e\n\u003ctd\u003e≥17.2 N\/mm² (2,490 psi) on steel pins and collars after 24 hours at 22 °C, ISO 10123\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eOperating temperature\u003c\/th\u003e\n\u003ctd\u003e-55 to 150 °C (-65 to 300 °F)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eSpecific gravity\u003c\/th\u003e\n\u003ctd\u003e1.13 at 25 °C\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003ePackage\u003c\/th\u003e\n\u003ctd\u003e50 mL tube; Henkel IDH 135527; legacy item 66040\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003ch2\u003eApplication and cure guidance\u003c\/h2\u003e\n\u003col\u003e\n\u003cli\u003eClean and dry the internal and external metal surfaces.\u003c\/li\u003e\n\u003cli\u003eOn inactive metals, at low temperature, or when faster cure is needed, apply LOCTITE SF 7471 or SF 7649 and allow it to dry.\u003c\/li\u003e\n\u003cli\u003eFor slip fits, apply around the leading edge of the pin and inside the collar, then assemble with a rotating motion. For press fits, coat both bond surfaces and assemble promptly.\u003c\/li\u003e\n\u003cli\u003eDo not disturb the parts until sufficient handling strength develops. Full performance is typically evaluated after 24 hours at room temperature.\u003c\/li\u003e\n\u003c\/ol\u003e\n\u003cp\u003e\u003cstrong\u003eImportant limitations:\u003c\/strong\u003e Not recommended for pure oxygen or oxygen-rich systems, chlorine, or other strong oxidizers. It is not normally recommended for plastics, especially thermoplastics that may stress-crack; test compatibility before use. Gaps larger than 0.50 mm should be rebuilt with an appropriate metal-filled repair compound.\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e","brand":"Loctite","offers":[{"title":"Fresh Material \/ 50 mL Tube","offer_id":48993181106430,"sku":"LT_660_50ML","price":63.0,"currency_code":"CAD","in_stock":true},{"title":"Short Shelf Life (1-3 Mths Left) \/ 50 mL Tube","offer_id":48993181139198,"sku":"SL_LT_660_50ML","price":52.0,"currency_code":"CAD","in_stock":false},{"title":"Recently Expired \/ 50 mL Tube","offer_id":48993181171966,"sku":"XP_LT_660_50ML","price":43.0,"currency_code":"CAD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1212\/5762\/files\/LOCTITE-660_22647_1881274_231699-1.jpg?v=1789754253","url":"https:\/\/www.perigeedirect.com\/en-ca\/products\/loctite-660-high-strength-retaining-compound-large-gap-repair","provider":"Perigee Direct","version":"1.0","type":"link"}