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Quality range
質量范圍 |
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| Silicones 硅硐膠： |
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* 市場上產品質量差異很大
Big quality fluctuation of products on the market
* 多達50+%的填加劑（可燃）50+ % extended (flammable)
* 由于填加劑的蒸發而硬化并收縮
Harden over time and shrink because of evaporation of extender
* 太多的配方及品牌以低質充斥市場
Lot’s of formutors / lalabels with low quality standard
* 雖外表看來無異，有些過期的硐肟性產品不能正常固化
Shelf life problems with Alkoxy systems(some expired products may appear suitable but may not
cure correctly
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| Polyurethane 聚氨酯膠： |
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* 僅有極少的生產商因此質量得以保證
Few manufacture only therefore better defined quality
* 由于不可能有特殊的填加劑因此無配方欺詐
No formulation tricks possible with special extenders |
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Adhesion on porous substrates
與多孔基面的粘結 |
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| Silicones 硅硐膠： |
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* 無特殊底油時很難或不粘結
Little to no adhesion without special primer
* 酸性硅膠無法用于混凝土（堿性基面）
Acetoxy systems cannot be used on concrete (alkaline substrates) |
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| Polyurethane 聚氨酯膠： |
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* 優良的粘結性能，尤其在多孔基面上使用時
Excellent adhesion especially on porous substrates
* 即使在堿性基面上使用時都不會有任何問題產生
No problem even on alkaline substrates |
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Staining problems
污染問題 |
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| Silicones 硅硐膠： |
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* 融入石材的風險 Risk of migration on natural stone
* 低分子硅硐粒子會污染表面（硅硐部分）
Staining of surface with low molecular Silicone particles (Silicone part)
* 只有特殊配方的“石材硅硐” 能被用在天然石材上，雖然石材表面因低分子硅硐粒子也會受污染
Only special formulation “Stone-Silicone” can be used for natural stone, although later
staining of surrounding surfaces may still occur from low molecular silicon particles
transferred with dirt & dust
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| Polyurethane 聚氨酯膠： |
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* 對標準的聚氨酯膠使用時無融入的問題產生
No migration problems with standards Polyurethane
* 無污染性 No staining |
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