先用光泽度计读数，再决定方案与报价

Start with a gloss meter reading, not a quotation

石材养护最常见的纠纷，是甲方觉得做完不够亮、乙方觉得已经尽力，原因是双方开工前没有一个可测量的基线。行业通行做法是用光泽度计在 60 度角读数，单位 GU（光泽单位）。全新大理石地板的光泽度通常在 90 至 100 GU。台湾一个 50 坪（约 165 平方米）豪宅案例的实测基线是：客厅中央 45 GU、沙发区走道 32 GU、玄关 28 GU、走廊 38 GU，普遍只剩新品的 30% 至 50%，因此判定为需要全面研磨抛光而不是只做保养。专业翻新加晶化后的公开技术指标一般落在 85 至 95 GU 以上。把开工前分区读数与竣工目标值写进合同，是最省事的验收方式。

Most disputes in stone care come from the absence of a measurable baseline: the client says it is not shiny enough, the contractor says it did everything it could. The industry practice is to read gloss at 60 degrees with a gloss meter, reported in gloss units (GU). A new marble floor normally reads 90 to 100 GU. In a documented 165-square-metre residential project, the measured baseline was 45 GU in the centre of the living room, 32 GU in the sofa walkway, 28 GU at the entrance and 38 GU in the corridor, leaving only 30 to 50 percent of the original gloss. That justified full grinding and polishing rather than routine maintenance. Published technical outcomes for professional restoration with crystallization typically land at 85 to 95 GU and above. Writing the pre-work readings per zone and the target value into the contract is the simplest way to settle acceptance.

三个尺寸决定要磨到多深

Three measurements decide how deep you grind

决定工艺深度的不是石材看起来多脏，而是三个可量的尺寸。第一是划痕深度：大部分表面划痕深度小于 0.1 毫米，精细研磨即可消除。第二是吃色深度：油污或色素渗入石材表面下的深度，前述案例中餐桌下方吃色渗入约 0.5 毫米，必须研磨至该深度才能彻底去除，只做晶面是盖不住的。第三是翻唇高差（tile lippage），即相邻石板的高度差，1 至 2 毫米属于可研磨修正的范围，超出则要考虑局部拆换。此外还要看石材硬度：意大利米白色大理石莫氏硬度约为 3，属软质石材，研磨时必须控制配重与转速，否则容易磨出波浪。

Depth of work is driven by three measurable dimensions, not by how dirty the floor looks. First, scratch depth: most surface scratches are under 0.1 mm and can be removed by fine honing. Second, stain penetration: in the case above, staining under the dining table had penetrated about 0.5 mm below the surface, so the floor had to be ground to that depth for full removal, and crystallization alone would never hide it. Third, tile lippage, the height difference between adjacent slabs; 1 to 2 mm is generally correctable by grinding, beyond which partial replacement should be considered. Stone hardness matters too: Italian beige marble has a Mohs hardness of about 3, a soft stone that requires careful control of machine weight and speed to avoid waving the surface.

金刚石磨片号数序列：从整平到镜面的六道工序

The diamond grit sequence: six passes from levelling to mirror

标准流程是从粗到细逐号推进，每一号的任务是彻底消除上一号留下的划痕纹路。整平阶段使用金属结合剂金刚石磨片，常见起步号数为 30、50、60、100、120，配重型研磨机处理翻唇、深划痕与磨损通道。中磨阶段转树脂结合剂，走 200、220、400 号，细化纹路并为固化处理做准备。精磨走 800、1500 号，此时表面开始出现初步光泽。最后用 3000 号或更细的金刚石抛光片出镜面。前述案例采用 50 号至 3000 号共六道工序，分三天完成。关键纪律是：每换一个号数前必须彻底清洁地面，确保上一号的磨料颗粒不会在下一阶段划伤石材，这是新手最常翻车的地方。

The process steps from coarse to fine, and each grit exists only to erase the scratch pattern left by the previous one. Levelling uses metal-bond diamond abrasives, commonly starting at 30, 50, 60, 100 or 120 grit on a weighted machine to correct lippage, deep scratches and traffic lanes. Intermediate honing switches to resin-bond pads at 200, 220 and 400 grit to refine the pattern and prepare the stone for densification. Fine honing runs 800 and 1500 grit, at which point the surface begins to show gloss. Final polishing uses 3000 grit or finer diamond pads for the mirror finish. The referenced project used a 50 to 3000 grit sequence in six passes over three days. The discipline that matters: clean the floor thoroughly before every grit change so leftover coarse particles do not scratch the surface in the next stage. This is where inexperienced crews fail most often.

晶面处理是化学反应，不是打蜡

Crystallization is a chemical reaction, not a wax

晶面（crystallization，也叫晶化、结晶）常被误解为一种蜡。实际上它是含草酸与硅化物的酸性化学液，配合钢丝棉垫与低速研磨机，在摩擦生热的条件下与大理石表面的碳酸钙发生反应，生成一层坚硬的钙硅酸盐结晶层。这层结晶层不只提升光泽，还能提高表面硬度与耐磨性、降低表面孔隙率。施工上通常做两道，每道之间让表面完全干燥。需要注意：晶面剂靠的是与碳酸钙反应，因此对大理石、部分石灰岩效果显著；花岗岩以石英与长石为主，成分不同，出光更多依赖 3000 号以上金刚石精磨与抛光粉，而不是晶面剂。

Crystallization is frequently mistaken for a wax. It is in fact an acidic compound containing oxalic acid and silicates, applied with steel wool pads on a low-speed machine so that friction heat drives a reaction with the calcium carbonate at the marble surface, forming a hard calcium silicate crystalline layer. That layer raises gloss, increases surface hardness and abrasion resistance, and reduces surface porosity. Two passes are typical, with full drying between them. One caveat: because the reaction depends on calcium carbonate, crystallization works well on marble and some limestones. Granite is dominated by quartz and feldspar, so gloss on granite comes mainly from 3000 grit and finer diamond honing with polishing powder rather than from crystallization chemicals.

水磨石与环氧地坪要换一套逻辑

Terrazzo and epoxy floors need a different logic

水磨石（terrazzo）表面是骨料加水泥或树脂基体，裂缝必须先用同色环氧填补再研磨，否则研磨浆会灌进裂缝形成永久色差。翻新后常用密实剂（densifier）搭配金刚石抛光，硅酸盐类材料渗入表面与游离氢氧化钙反应，从内部提升硬度并封闭微孔，而不是在表面盖一层膜。环氧地坪与抛光混凝土则更依赖地坪研磨机走号数，处理逻辑接近石材但对平整度和吸尘要求更高。一个通用原则：凡是靠化学反应改变基材本身的工艺（晶面、密实），耐久性都好于表面成膜工艺（打蜡、涂层），代价是不可逆、施工要求更高。

Terrazzo is aggregate in a cement or resin matrix. Cracks must be filled with colour-matched epoxy before grinding, otherwise slurry enters the crack and leaves a permanent colour difference. Restoration then combines diamond polishing with a densifier: silicate materials penetrate the surface, react with free calcium hydroxide, harden the matrix from within and close micro-pores, rather than laying a film on top. Epoxy and polished concrete rely more heavily on floor grinders working through the grit sequence, with tighter demands on flatness and dust extraction. A general rule holds: processes that chemically alter the substrate, such as crystallization and densification, outlast film-forming processes such as wax and coatings, at the cost of being irreversible and more demanding to execute.

完整设备与耗材清单

The full equipment and consumable list

一套能接工程的石材翻新配置通常包括：重型加重研磨机或行星盘研磨机（负责整平与粗磨，配重决定切削力）、多功能石材研磨机（中细磨主力）、高速抛光机（晶面与日常保养出光）、工业吸水机（粗磨阶段泥浆量最大，必须持续抽走以保持施工面可视）、单擦机（清洗与钢丝棉晶面）、渗透型石材防护剂（最后封孔防污）、以及各号数金属与树脂金刚石磨片、钢丝棉垫、研磨蜡与抛光粉。现场保护同样是成本项：防尘布与遮蔽胶带保护墙面、家具与木作踢脚板，大理石研磨会产生大量含水石粉泥浆，保护不到位的返工成本远高于耗材。

A crew equipped to take on contract work typically carries a weighted or planetary-head grinder for levelling and coarse grinding, where added weight determines cutting force; a multi-function stone grinder for intermediate and fine passes; a high-speed burnisher for crystallization and routine gloss maintenance; an industrial wet vacuum, because the coarse stage produces the largest volume of slurry and it must be extracted continuously to keep the work face visible; a single-disc machine for washing and steel-wool crystallization; a penetrating stone sealer to close pores at the end; plus metal and resin diamond pads across the grit range, steel wool pads, polishing compounds and powders. Site protection is a real cost line: dust sheets and masking tape for walls, furniture and timber skirting, since marble grinding generates large volumes of wet stone slurry and the cost of rework far exceeds the cost of consumables.

工期、周期与日常维护

Schedule, cycle and day-to-day maintenance

以约 165 平方米住宅为例，公开案例的工期是三天：第一天粗磨与整平，第二天细磨与抛光，第三天晶化与防护。商业场所面积更大但可以分区封闭施工，酒店大堂通常安排在夜间连续作业。翻新后的维护周期，行业公开说法是在正常维护条件下，一次完整的大理石或水磨石翻新可以保持 3 至 7 年再进入下一轮抛光。日常维护的关键是避免酸性液体：柠檬汁、醋、可乐等接触大理石会造成酸蚀（etching），这类损伤靠清洁剂救不回来，只能重新研磨。日常清洁应使用中性清洁剂配洗地机或尘推，配合高速抛光机定期抛光维持光泽。

For roughly 165 square metres, the documented schedule is three days: coarse grinding and levelling on day one, fine honing and polishing on day two, crystallization and sealing on day three. Commercial areas are larger but can be closed off zone by zone, and hotel lobbies are usually worked overnight. As for the cycle, published practice is that with proper maintenance a full marble or terrazzo restoration holds its shine for 3 to 7 years before the next polishing round. The key maintenance rule is avoiding acids: lemon juice, vinegar and cola etch marble, and etching cannot be cleaned away, only ground out. Routine care means neutral detergent with a scrubber or dust mop, plus periodic burnishing to sustain gloss.

报价里最容易被漏掉的三项

Three cost items quotations usually forget

第一是泥浆处理与排放：粗磨阶段产生的含水石粉不能直接倒入下水道，商业项目通常要求沉淀后清运，这笔费用要单列。第二是电力与用水条件：大型研磨机多为三相电，酒店和商场现场往往需要临时配电，勘察时必须确认。第三是分区与交叉作业：商业空间无法整体封闭，分区施工会显著拉长工期并增加设备转场次数。把这三项写进方案，报价才经得起比价。ApexClean 隶属常州永乐环境工程有限公司，25 年清洁设备制造与出口经验，通过 CE 与 ISO9001 体系，可按面积、石材类型与目标光泽度配置整套研磨、抛光、吸水与防护方案。

First, slurry handling and disposal. Wet stone powder from the coarse stage cannot go down the drain; commercial projects normally require settling and removal, and that should be a separate line item. Second, power and water supply. Large grinders are typically three-phase, and hotels or malls often need temporary distribution, which must be confirmed during the site survey. Third, zoning and concurrent operations. Commercial spaces cannot be closed entirely, and zoned work lengthens the schedule and multiplies equipment moves. A quotation that names these three survives comparison. ApexClean, part of Changzhou Yongle Environmental Engineering Co., Ltd., with 25 years in cleaning equipment manufacturing and export and CE and ISO9001 certification, configures grinding, polishing, extraction and protection packages by area, stone type and target gloss.