Brand Classification of Epoxy Adhesives for Repairing Precision Granite Bases (Semiconductor / Metrology Platforms)
Divided into three categories: Imported High-End (Preferred for lithography machines / 000-grade platforms), Industrial Mid-Range (Ordinary 00-grade inspection platforms), and Domestic Precision Alternatives (Cost-effective). All must meet the requirements of low shrinkage (<0.5%), high rigidity, polishability, and optional anti-static properties. Home decoration marble glue and ordinary stone glue are strictly prohibited. Selection is divided into two main types: micro-crack penetrating type and groove-filling structural type.
I. Imported High-End Brands | Preferred for Semiconductor Granite Platforms (000-grade, Lithography Machines / Wafer Inspection Bases)
- Akemi (Germany, European benchmark for stone epoxy)
Main models: Akepox transparent penetrating adhesive (hairline cracks <0.2mm), Akepox-S structural filling adhesive (0.2~3mm cracks)
Advantages: Can be mixed with black pigment to match Jinan blue granite; curing shrinkage ≤0.3%; Shore D hardness 85 ; can be precision-ground to Ra0.05μm after curing; available in anti-static modified versions (10⁶~10¹¹Ω); the original factory standard repair adhesive for global CMMs and semiconductor marble platforms.
Applications: Through-cracks, joint cracking, structural cracks in lithography machine bases. - GemsBond (Italy)
Models: X9010 low-viscosity penetrating epoxy (fine cracks), WELD X10 thixotropic structural AB adhesive (groove filling)
Mixing ratio A:B=2:1, low shrinkage, anti-yellowing, full range of viscosities, syringe injection for fine cracks, putty application for wide cracks, widely used by domestic granite gauge manufacturers. - Sika (Switzerland) Sikadur Series
Sikadur31CFN (structural repair), Sikadur52 penetrating type
Solvent-free, low linear expansion coefficient, thermal expansion coefficient close to granite (4~5×10⁻⁶/℃), used for fracture reinforcement of heavy granite bases, can be used with stainless steel reinforcement plates. - 3M (USA) DP Series Structural Epoxy
DP460 (black high-strength), DP190 low-viscosity penetrating
High strength, vibration-resistant, temperature-change resistant, used for joint repair of equipment bases and load-bearing support cracks; anti-static customized versions suitable for semiconductor cleanrooms. - Tenax (Italy, global veteran in precision stone repair)
Tefill ultra-fine penetrating adhesive (special for hairline micro-cracks) Structural filling epoxy
A classic in the gauge marble platform industry, seamless curing, easy to polish, standard repair for domestic Jinan blue granite manufacturers.
II. Western Industrial-Grade Brands | General Precision Granite (CMMs, Inspection Platforms 00-grade)
Megapoxy (Australia) 206Ultra: Ultra-low compression structural epoxy, used for thick joint filling of large granite pieces, can be mixed with granite fine powder for color matching, specifically for heavy equipment base repair.
Laticrete (USA) SPECTRALOCK2000IG: Industrial stone epoxy, acid and alkali resistant, anti-static, used for joint repair of laboratory granite workbenches.
Devcon (USA): 10110 epoxy structural repair agent, used for crack reinforcement of metal granite composite bases.
III. Domestic Precision Specialized Brands | Import Substitution (Mass-produced and in use by domestic granite platform manufacturers, high cost-performance ratio)
- Hunan Aoyou (Kesheng New Materials) KW6181 Precision Stone Epoxy
Segment: Low-viscosity penetrating type (0.02~0.2mm fine cracks), thixotropic filling type (slot repair), can be modified for anti-static properties, shrinkage ≤0.4%, supporting repair adhesive for domestic semiconductor granite base manufacturers, black color can be adjusted to match Jinan Green. - Juli (Dongguan) Precision Stone Specialized AB Epoxy
JL-820 penetrating epoxy, JL-830 structural filling adhesive; customized anti-static formula, supplied in large quantities to domestic granite measuring tool factories. - Yihe YH6150 Series Epoxy AB Adhesive
High temperature resistant, low shrinkage, universal type for regular crack repair of granite platforms, SGS environmentally friendly, the first choice for ordinary 00-grade inspection tables. - Huachuang Insulation Customized Epoxy (Dongguan)
Can customize anti-static, low linear expansion coefficient specialized formulas, benchmarking Akemi parameters, commonly used in large-scale equipment base repair projects.
IV. Quick Selection Reference Table by Crack Type
Cuadro
Crack Specification Adhesive Type Classification Preferred Brands & Models
Hairline cracks <0.2mm Low-viscosity penetrating epoxy Akemi penetrating adhesive, Tenax Tefill, Aoyou KW6181 penetrating type, GemsBond X9010
0.2~2mm slotted cracks Thixotropic structural filling epoxy Akepox-S, Sika 31CFN, 3M DP460, Aoyou filling type
2mm through structural cracks Structural epoxy reinforcement Megapoxy206, Sikadur31 stainless steel reinforcement plates
Semiconductor anti-static requirements Anti-static modified epoxy Akemi anti-static customized, Aoyou anti-static type, Juli anti-static epoxy
V. Key Purchasing Indicators (Hard Thresholds for Semiconductor Platforms)
Curing volume shrinkage rate ≤0.5% (preferably ≤0.3%);
Coefficient of thermal expansion ≤5×10⁻⁶/℃ (close to granite);
Curing hardness Shore D ≥80, can be ground and polished with diamond grinding discs;
Semiconductor scenario: surface resistivity 10⁶~10¹¹Ω anti-static.
