THERMODRAIN FRP / GRP / Composite Manhole Covers Vs Cast Iron / Ductile Iron Manhole Covers

THERMODRAIN FRP/GRP/COMPOSITE MANHOLE COVERS	CAST IRON / DUCTILE IRON MANHOLE COVERS

High Strength To Weight Ratio.	Low Strength To Weight Ratio
No Scrap Value Hence No Theft	High Risk of Theft
Light Weight - Easy To Handle	Heavy - Needs More Manpower
Material Has High Impact Resistance Hence Doesn’t Crack On Impact	Material Is Brittle Hence Easily Cracks On Impact
Corrosion Resistant, No Effect of Sea / Sewage Water.	Gets Corroded By Sewage & Sea Water
High Aesthetic Value, Available In Granite Finish Or Any Desired Color	Standard Appearance
Self Pigmented. No Painting Required	Painting Required at Regular Intervals
Less Freight & Handling Cost, Due To Less Weight	Higher Freight and Handling Cost, Due To More Weight
No Extra GRP Plate Is Required To Protect From Corrosion	Extra GRP Plate is Required Below the Cover To Protect From Corrosion