Product | No. | Uses | Unit |
---|---|---|---|
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. | Engineering and construction structure (top and bottom reinforcement) | ㎡ |

Description
underground structure waterproofing using 'self-adhesive membrane sheet' (magic sheet) is made of high polymer modified asphalt is designed to form multiple film of uniform thickness for improved water-tightness and workability.
Features
- A polymer modified asphalt improved to be durable at low temperatures which does not soften at gigh temperature and has excellent durability and weather resistance.
- SBS triblock copolymer has very low thermal sensitivity, so is not brittle at low temperatures and is fluidic or alkalis.
- A polymer modified asphalt with high elasticity and plasticity which is not easily fractured by crack asnd is highly resistant to crack movement self-adhesive at the joint, making a single body for high adhesive strength and water0tightness for a long term basis.
Cross section
Bottom + Wall system

Top + Wall system

Sheet joint detail drawing

Frailty reinforcement

Work sequence
- Top and floor concrete : surface cleaning → primer coating → attaching magic sheet → waterproofing layer protection (protective mortar)
- Wall concrete : surface cleaning → primer coating → 1st corner reinforcement (binder seal) → 2nd corner reinforcement (black jacket) → application of self-adhesive sheeting → waterproofing layer protection (PE form) → backfilling
