Waterproofing Calculator – Nuvoco Zero M
वॉटरप्रूफ़िंग कैलकुलेटर (Zero M)
Work out Zero M IWC+ to mix in your slab, plaster or tank concrete, or Zero M Roof Shield to coat a finished roof — with the right packs to buy.
Liquid waterproofing added to concrete, plaster and mortar — roof slab, bathroom, water tank, outside plaster. Official dosage: 200 ml per 50 kg cement bag.
14.4 L Zero M IWC+ for 72 bags
- Cement in the slab (M20)30 × 25 ft, 5"
- 72 bags
- Zero M IWC+ needed200 ml × 72 bags
- 14.4 L
- Best packs to buy1 × 10 L @ ₹1,399 + 1 × 5 L @ ₹759
- 15 L≈ ₹2,158
Retail rates as of 29 Oct 2026. Bulk orders get better rates; delivery extra.
How to mix (Nuvoco): dry-mix cement & aggregate 1–2 min, add 60–70% of the water and mix 2–3 min, then add IWC+ dissolved in the remaining water and mix 2–3 min more. Never add it to the dry mix.
Get this quote on WhatsAppHow this is calculated
- •Zero M IWC+ (integral waterproofing compound, IS 2645 / IS 9103): 200 ml per 50 kg cement bag, as per Nuvoco's technical data sheet. Packs 1, 5, 10 and 20 L — the calculator picks the cheapest combination at today's rate.
- •Roof slab mode works out the cement bags for an M20 slab first (see the concrete calculator), then applies 200 ml per bag.
- •Zero M Roof Shield (acrylic-PU roof coating, ASTM D6083 Type II): primer coat diluted 2:1 with water at about 8–10 m² per litre, then 2 undiluted coats at 2–2.2 m² per litre per coat. Packs 4, 10 and 20 L. We size the purchase on the lower coverage so you don't run short.
FAQs
How much Zero M waterproofing per bag of cement?
Nuvoco recommends 200 ml of Zero M IWC+ per 50 kg cement bag — 1 litre for every 5 bags. Mix it into the last 30–40% of the mixing water, never into dry cement.
छत ढलाई में कितना Zero M डालें?
हर 50 किलो सीमेंट की बोरी पर 200 ml Zero M IWC+ — यानी 5 बोरी पर 1 लीटर। 30×25 फ़ीट की 5 इंच मोटी छत (M20) में लगभग 72 बोरी सीमेंट लगती है, यानी करीब 14.4 लीटर Zero M IWC+।
How much Zero M Roof Shield for a 1000 sq ft roof?
1000 sq ft is about 93 m². Primer about 9–12 L (diluted 2:1 with water) plus two coats of about 42–47 L each — roughly 94–105 L in total, i.e. 4 × 20 L + 1 × 10 L + 4 × 4 L packs.
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