{"title":"PFC (Perfect Fine Chemical)","description":"\u003ch2\u003ePFC — Injection Waterproofing \u0026amp; Elastic Membrane Specialist\u003c\/h2\u003e\n\u003cp\u003ePFC specialises in injection waterproofing grouts and elastic waterproofing membranes, suitable for basements, external walls and rooftop leak repairs. Products include water-reactive PU injection grouts and single-component elastic membranes, paired with professional injection tools to address various leakage problems.\u003c\/p\u003e\n\n\u003ch2\u003eProduct Lines\u003c\/h2\u003e\n\n\u003ch3\u003eInjection Waterproofing Grout\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\u003ca href=\"\/en\/products\/pfc-250-水溶性pu灌漿劑-打針防水\"\u003ePFC-250\u003c\/a\u003e — Water-reactive PU injection grout, expanding type, suitable for general crack and leak repairs\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"\/en\/products\/pfc-350-水溶性pu灌漿劑-打針防水\"\u003ePFC-350\u003c\/a\u003e — Water-reactive PU injection grout, high expansion rate, suitable for severe leaks and dynamic cracks\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eElastic Waterproofing Membrane\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\u003ca href=\"\/en\/products\/pfc-801-彈性防水膜\"\u003ePFC 801\u003c\/a\u003e — Single-component acrylic elastic waterproofing membrane, brush-applied, suitable for rooftop and external wall surface waterproofing\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eInjection Waterproofing Tools\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\u003ca href=\"\/en\/products\/打針防水工具-止漏針-鑽咀-高壓喉-針槍配件\"\u003eInjection Tool Kit\u003c\/a\u003e — Injection packers, drill bits, high-pressure hoses and gun accessories, for use with PFC grouts\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cp\u003eWah Hing supplies the full PFC product range. Most products typically in stock.\u003c\/p\u003e","products":[{"product_id":"pfc-801-彈性防水膜","title":"PFC 801 Single-Component Acrylic Elastic Waterproofing Membrane","description":"\u003cdiv style=\"background:#f0f4f8;border-left:4px solid #a02c2c;padding:16px;margin-bottom:24px;\"\u003e\u003cstrong\u003eSummary:\u003c\/strong\u003e\u003cp\u003ePFC-801 is a single-component, water-based acrylic elastic waterproofing membrane. Environmentally safe with no toxic fumes, UV-resistant, forming a highly elastic seamless weatherproof coating with exceptional elongation. Suitable for new and existing building surfaces, rooftops, platforms, external walls, and balconies.\u003c\/p\u003e\u003c\/div\u003e\u003ch3\u003eProduct Features\u003c\/h3\u003e\u003cul\u003e\u003cli\u003eWater-based eco-friendly formula — non-toxic, odourless\u003c\/li\u003e\u003cli\u003eUV-resistant — will not chalk under long-term exposure\u003c\/li\u003e\u003cli\u003eHighly elastic — exceptional elongation accommodates substrate movement\u003c\/li\u003e\u003cli\u003eSeamless membrane formation with strong adhesion\u003c\/li\u003e\u003cli\u003eEasy application — brush or trowel applied directly\u003c\/li\u003e\u003cli\u003eBreathable — allows moisture vapour transmission, prevents blistering\u003c\/li\u003e\u003c\/ul\u003e\u003ch3\u003eApplications\u003c\/h3\u003e\u003cul\u003e\u003cli\u003eNew and existing building surface waterproofing\u003c\/li\u003e\u003cli\u003eRooftops and flat roofs\u003c\/li\u003e\u003cli\u003ePlatforms and terraces\u003c\/li\u003e\u003cli\u003eExternal wall waterproofing\u003c\/li\u003e\u003cli\u003eBalconies\u003c\/li\u003e\u003c\/ul\u003e\u003ch3\u003eApplication Method\u003c\/h3\u003e\u003col\u003e\u003cli\u003e\u003cstrong\u003eSubstrate preparation\u003c\/strong\u003e — surface must be level, sound, clean, free of standing water and leaks. Cracks must be repaired, leaks must be sealed, internal\/external corners should be rounded\u003c\/li\u003e\u003cli\u003e\u003cstrong\u003eCoating\u003c\/strong\u003e — apply with roller or trowel in successive coats. Each coat must be fully dry and tack-free before applying the next\u003c\/li\u003e\u003cli\u003e\u003cstrong\u003eAnti-slip treatment\u003c\/strong\u003e — if anti-slip is required, broadcast fine sand into the top coat\u003c\/li\u003e\u003cli\u003e\u003cstrong\u003eReinforcement\u003c\/strong\u003e — fibre mesh can be embedded between coats for additional strength\u003c\/li\u003e\u003c\/ol\u003e\u003ch3\u003eImportant Notes\u003c\/h3\u003e\u003cul\u003e\u003cli\u003eDo not apply in cold conditions or during rain\u003c\/li\u003e\u003cli\u003eKeep container sealed when not in use\u003c\/li\u003e\u003cli\u003eAfter full cure, conduct a ponding test to confirm watertightness\u003c\/li\u003e\u003cli\u003eStore indoors in a cool location away from direct sunlight\u003c\/li\u003e\u003c\/ul\u003e\u003cp\u003e\u003cem\u003eFor detailed application methods, coverage rates, and technical parameters, please refer to the official product data sheet.\u003c\/em\u003e\u003c\/p\u003e","brand":"PFC 百分百","offers":[{"title":"Grey 灰 \/ 1 L","offer_id":43759223013526,"sku":"","price":1.0,"currency_code":"HKD","in_stock":true},{"title":"Grey 灰 \/ 4 L","offer_id":43759223046294,"sku":"","price":1.0,"currency_code":"HKD","in_stock":true},{"title":"Grey 灰 \/ 18 L","offer_id":43759223079062,"sku":"","price":1.0,"currency_code":"HKD","in_stock":true},{"title":"White 白 \/ 1 L","offer_id":43759223111830,"sku":"","price":1.0,"currency_code":"HKD","in_stock":true},{"title":"White 白 \/ 4 L","offer_id":43759223144598,"sku":"","price":1.0,"currency_code":"HKD","in_stock":true},{"title":"White 白 \/ 18 L","offer_id":43759223177366,"sku":"","price":1.0,"currency_code":"HKD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0594\/9027\/1382\/files\/PFC_801.png?v=1754567055"},{"product_id":"pfc-350-水溶性pu灌漿劑-打針防水","title":"PFC-350 Hydrophilic Flexible PU Injection Grout","description":"\u003ch2\u003ePFC-350 — Water-Reactive PU Injection Grout\u003c\/h2\u003e\n\u003cp\u003ePFC-350 is a high-performance single-component polyurethane chemical injection grout for waterproofing by injection. Reacts with water to expand and foam, effectively sealing cracks, honeycombs and window frame joints in concrete.\u003c\/p\u003e\n\u003ch3\u003eFeatures\u003c\/h3\u003e\n\u003cul\u003e\u003cli\u003eHigh tensile strength and adhesion\u003c\/li\u003e\u003cli\u003eWaterproof, elastic, tough\u003c\/li\u003e\u003cli\u003eFast expansion on contact with water\u003c\/li\u003e\u003cli\u003eChloride-free — no rebar corrosion\u003c\/li\u003e\u003cli\u003eMinimal shrinkage after expansion\u003c\/li\u003e\u003c\/ul\u003e\n\u003ch3\u003eApplications\u003c\/h3\u003e\n\u003cul\u003e\u003cli\u003eConcrete crack injection\u003c\/li\u003e\u003cli\u003eHoneycomb filling\u003c\/li\u003e\u003cli\u003eWindow frame joint sealing\u003c\/li\u003e\u003cli\u003eBuilding walls, tunnels, dams\u003c\/li\u003e\u003c\/ul\u003e\n\u003ch3\u003ePFC-350 vs PFC-250\u003c\/h3\u003e\n\u003cp\u003ePFC-350 reacts faster with higher expansion — best for quick sealing. PFC-250 reacts slower for deeper penetration into longer cracks.\u003c\/p\u003e\n","brand":"PFC 百分百","offers":[{"title":"5 kg","offer_id":46355449053334,"sku":null,"price":1.0,"currency_code":"HKD","in_stock":true},{"title":"20 kg","offer_id":46355449184406,"sku":null,"price":1.0,"currency_code":"HKD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0594\/9027\/1382\/files\/pfc-350-small.png?v=1776827730"},{"product_id":"打針防水工具-止漏針-鑽咀-高壓喉-針槍配件","title":"PU Injection Waterproofing Tools — Injection Packers (Leak-Stop Needles) \/ Drill Bits \/ High-Pressure Hose \/ Grease Couplers \/ Accessories","description":"\u003cdiv style=\"background:#f0f4f8;border-left:4px solid #a02c2c;padding:16px;margin-bottom:24px;\"\u003e\n\u003cstrong\u003eOverview:\u003c\/strong\u003e\u003cp\u003eComplete toolset for PU injection waterproofing (grouting \/ leak-sealing), including injection packers (also called leak-stop needles or injection nozzles), drill bits, high-pressure hose, grease couplers, extension rod, and T-wrench. Used with PU injection grout for sealing concrete cracks, window-edge leaks, ceiling leaks, and other waterproofing repairs.\u003c\/p\u003e\n\u003c\/div\u003e\u003ch3\u003eProduct Range\u003c\/h3\u003e\u003ctable\u003e\n\u003cthead\u003e\u003ctr\u003e\u003cth\u003eItem\u003c\/th\u003e\u003cth\u003eDescription\u003c\/th\u003e\u003c\/tr\u003e\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\u003ctd\u003eInjection Packer ø3 × 60mm\u003c\/td\u003e\u003ctd\u003eSlim-needle injection nozzle, 3mm diameter, 60mm length. Slim profile suited to hairline cracks or precise injection points. Available in 10, 50 and 100-pc packs.\u003c\/td\u003e\u003c\/tr\u003e\n\u003ctr\u003e\u003ctd\u003eInjection Packer ø10 × 75mm\u003c\/td\u003e\u003ctd\u003eStandard injection nozzle, 10mm diameter, 75mm length. Suited to thinner walls or shallow-depth crack injection. Available in 10, 50 and 100-pc packs.\u003c\/td\u003e\u003c\/tr\u003e\n\u003ctr\u003e\u003ctd\u003eInjection Packer ø10 × 100mm\u003c\/td\u003e\u003ctd\u003eStandard injection nozzle, 10mm diameter, 100mm length. Suited to typical wall and slab thicknesses. Available in 10, 50 and 100-pc packs.\u003c\/td\u003e\u003c\/tr\u003e\n\u003ctr\u003e\u003ctd\u003eInjection Packer ø10 × 150mm\u003c\/td\u003e\u003ctd\u003eStandard injection nozzle, 10mm diameter, 150mm length. Suited to thicker walls; grout penetrates deeper. Available in 10, 50 and 100-pc packs.\u003c\/td\u003e\u003c\/tr\u003e\n\u003ctr\u003e\u003ctd\u003eInjection Packer ø13 × 15mm\u003c\/td\u003e\u003ctd\u003eShort-body injection nozzle, 13mm diameter, 15mm length. For very shallow injection or thickness-restricted locations. Available in 10, 50 and 100-pc packs.\u003c\/td\u003e\u003c\/tr\u003e\n\u003ctr\u003e\u003ctd\u003eInjection Packer ø13 × 60mm\u003c\/td\u003e\u003ctd\u003eInjection nozzle, 13mm diameter, 60mm length. For thin structures or shallow-leak repair. Available in 10, 50 and 100-pc packs.\u003c\/td\u003e\u003c\/tr\u003e\n\u003ctr\u003e\u003ctd\u003eInjection Packer ø13 × 100mm\u003c\/td\u003e\u003ctd\u003eInjection nozzle, 13mm diameter, 100mm length. For medium-thickness structural injection. Available in 10, 50 and 100-pc packs.\u003c\/td\u003e\u003c\/tr\u003e\n\u003ctr\u003e\u003ctd\u003eInjection Packer ø13 × 150mm\u003c\/td\u003e\u003ctd\u003eInjection nozzle, 13mm diameter, 150mm length; larger diameter delivers higher grout flow. Available in 10, 50 and 100-pc packs.\u003c\/td\u003e\u003c\/tr\u003e\n\u003ctr\u003e\u003ctd\u003eInjection Packer ø13 × 250mm\u003c\/td\u003e\u003ctd\u003eLong-body injection nozzle, 13mm diameter, 250mm length. For thick walls and deep-injection works. Available in 10, 50 and 100-pc packs.\u003c\/td\u003e\u003c\/tr\u003e\n\u003ctr\u003e\u003ctd\u003eDrill Bit ø10mm\u003c\/td\u003e\u003ctd\u003eMakita SDS-Plus hammer drill bit, designed for concrete drilling. Used with 10mm injection packers.\u003c\/td\u003e\u003c\/tr\u003e\n\u003ctr\u003e\u003ctd\u003eDrill Bit ø13mm\u003c\/td\u003e\u003ctd\u003eSDS-Plus hammer drill bit. Used with 13mm injection packers.\u003c\/td\u003e\u003c\/tr\u003e\n\u003ctr\u003e\u003ctd\u003eHigh-Pressure Hose\u003c\/td\u003e\u003ctd\u003ePressure-rated hose connecting the injection pump to the packer, rated for high-pressure injection operation.\u003c\/td\u003e\u003c\/tr\u003e\n\u003ctr\u003e\u003ctd\u003eGrease Coupler (Silver Stainless)\u003c\/td\u003e\u003ctd\u003eStainless steel quick-connect coupler joining the high-pressure hose to the injection packer; rated for high-pressure operation. Boxed.\u003c\/td\u003e\u003c\/tr\u003e\n\u003ctr\u003e\u003ctd\u003eGrease Coupler (Black NUOKA)\u003c\/td\u003e\u003ctd\u003eNUOKA-branded black knurled-finish coupler joining the high-pressure hose to the injection packer. Boxed.\u003c\/td\u003e\u003c\/tr\u003e\n\u003ctr\u003e\u003ctd\u003eExtension Rod\u003c\/td\u003e\u003ctd\u003eStainless steel extension rod for ceiling or deep-set injection points where direct access is restricted.\u003c\/td\u003e\u003c\/tr\u003e\n\u003ctr\u003e\u003ctd\u003eT-Wrench\u003c\/td\u003e\u003ctd\u003eDedicated wrench for tightening and securing injection packers in the drilled holes.\u003c\/td\u003e\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\u003ch3\u003eApplications\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003eConcrete crack injection \/ leak sealing\u003c\/li\u003e\n\u003cli\u003eWindow-frame and AC-edge leak repair\u003c\/li\u003e\n\u003cli\u003eCeiling leak injection waterproofing\u003c\/li\u003e\n\u003cli\u003eExternal-wall leak grouting\u003c\/li\u003e\n\u003cli\u003eBasement, water tank, tunnel waterproofing injection\u003c\/li\u003e\n\u003cli\u003eNew\/old concrete joint leak repair\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eApplication Procedure\u003c\/h3\u003e\u003col\u003e\n\u003cli\u003eUsing a hammer drill with the matching bit (ø10mm or ø13mm), drill holes along both sides of the leaking crack. Spacing and depth depend on structural thickness and crack condition.\u003c\/li\u003e\n\u003cli\u003eInsert the injection packer (nozzle) into each drilled hole and tighten with the T-wrench.\u003c\/li\u003e\n\u003cli\u003eConnect one end of the high-pressure hose to the injection pump; connect the other end through the grease coupler to the packer.\u003c\/li\u003e\n\u003cli\u003eInject PU grout (such as \u003ca href=\"\/en\/products\/pfc-350-%E6%B0%B4%E6%BA%B6%E6%80%A7pu%E7%81%8C%E6%BC%BF%E5%8A%91-%E6%89%93%E9%87%9D%E9%98%B2%E6%B0%B4\"\u003ePFC-350\u003c\/a\u003e or \u003ca href=\"\/en\/products\/sika-%E8%A5%BF%E5%8D%A1-sikafix-101-pu%E9%81%87%E6%B0%B4%E8%86%A8%E6%BC%B2%E9%87%9D%E6%96%99\"\u003eSika SikaFix 101\u003c\/a\u003e); watch for grout bleeding from neighbouring packers to confirm filling is complete.\u003c\/li\u003e\n\u003cli\u003eOnce the grout has cured, remove the packers and seal the drilled holes with repair mortar.\u003c\/li\u003e\n\u003c\/ol\u003e\u003ch3\u003eFAQ\u003c\/h3\u003e\u003ch3\u003eWhat is the difference between injection packers and leak-stop needles?\u003c\/h3\u003e\u003cp\u003eInjection packers and leak-stop needles refer to the same item — the injection nozzle used in injection waterproofing works — they're just trade-name variations. Our range covers multiple diameters and needle lengths to suit different working conditions.\u003c\/p\u003e\u003ch3\u003eHow do I choose the right size of injection tool?\u003c\/h3\u003e\u003cp\u003eIn most situations 10mm injection packers cover the typical injection waterproofing job. 13mm packers are used for thicker concrete walls or where higher grout flow is required. The drill bit size must match the packer size.\u003c\/p\u003e\u003ch3\u003eWhat are the grease couplers for?\u003c\/h3\u003e\u003cp\u003eThe grease coupler is the quick-connect fitting between the injection pump's high-pressure hose and the injection packer, making attach\/detach faster on site. We stock a silver stainless steel option and a black NUOKA-branded option, compatible with different injection pumps.\u003c\/p\u003e\u003ch3\u003eCan injection packers be reused?\u003c\/h3\u003e\u003cp\u003eInjection packers are consumables. We recommend using new packers on each job to ensure the seal holds; residual cured PU grout inside used packers can restrict grout flow.\u003c\/p\u003e\u003ch3\u003eWhich injection grout should I use with these tools?\u003c\/h3\u003e\u003cp\u003eWe recommend a water-soluble PU injection grout such as \u003ca href=\"\/en\/products\/pfc-350-%E6%B0%B4%E6%BA%B6%E6%80%A7pu%E7%81%8C%E6%BC%BF%E5%8A%91-%E6%89%93%E9%87%9D%E9%98%B2%E6%B0%B4\"\u003ePFC-350 Water-Soluble PU Injection Grout\u003c\/a\u003e. Water-expansive PU is suited to active leaks and seals quickly on contact with water.\u003c\/p\u003e\u003cscript type=\"application\/ld+json\"\u003e{\"@context\":\"https:\/\/schema.org\",\"@type\":\"FAQPage\",\"mainEntity\":[{\"@type\":\"Question\",\"name\":\"What is the difference between injection packers and leak-stop needles?\",\"acceptedAnswer\":{\"@type\":\"Answer\",\"text\":\"Injection packers and leak-stop needles refer to the same item — the injection nozzle used in injection waterproofing works — they are just trade-name variations. Our range covers multiple diameters and needle lengths to suit different working conditions.\"}},{\"@type\":\"Question\",\"name\":\"How do I choose the right size of injection tool?\",\"acceptedAnswer\":{\"@type\":\"Answer\",\"text\":\"In most situations 10mm injection packers cover the typical injection waterproofing job. 13mm packers are used for thicker concrete walls or where higher grout flow is required. The drill bit size must match the packer size.\"}},{\"@type\":\"Question\",\"name\":\"What are the grease couplers for?\",\"acceptedAnswer\":{\"@type\":\"Answer\",\"text\":\"The grease coupler is the quick-connect fitting between the injection pump high-pressure hose and the injection packer, making attach\/detach faster on site. We stock a silver stainless steel option and a black NUOKA-branded option, compatible with different injection pumps.\"}},{\"@type\":\"Question\",\"name\":\"Can injection packers be reused?\",\"acceptedAnswer\":{\"@type\":\"Answer\",\"text\":\"Injection packers are consumables. We recommend using new packers on each job to ensure the seal holds; residual cured PU grout inside used packers can restrict grout flow.\"}},{\"@type\":\"Question\",\"name\":\"Which injection grout should I use with these tools?\",\"acceptedAnswer\":{\"@type\":\"Answer\",\"text\":\"We recommend a water-soluble PU injection grout. 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