§1What this business is
Natural rubber (smoked sheet) is softened on a mixing mill and mixed with fillers, zinc oxide, stearic acid, accelerators, sulphur and colour, then left to mature. The compound is sheeted, cut to pattern, the two sides are joined and the bag is cured in a hydraulic press at about 150 °C for 10 minutes. Buyers are chemists, surgical-goods distributors and hospitals.
§2Is it right for you?
Who it is for
Someone with rubber-moulding experience and links to chemist and surgical-goods distributors.
Who it is not for
Someone who needs profit from year 1 — the profile shows losses until year 4.
Advantages
- Steady demand from hospitals, chemists and homes
- No land needed; machinery ₹18.35 L
- Simple rubber compounding and moulding
Drawbacks
- Well-known national brands lead the market (profile)
- The profile shows losses for the first three years
- A leaking bag can scald a user — quality must be strict
Skills you need
- Rubber compounding on a mixing mill
- Curing in hydraulic presses
- Leak and seam testing
- Selling through chemist distributors
Why difficulty 3/5: Simple process, but brand competition and early losses.
§3Market
Who buys
- Hospitals and clinics
- Chemists
- Households
How it sells
- Surgical and chemist distributors
- Online and retail pharmacies
Good to know
- The profile says the market is quality-conscious and led by established national brands.
- Sales at full capacity ₹43.20 L a year (profile).
§4Raw material & machinery
| Item | Qty | Cost |
|---|---|---|
| Rubber mixing mill | 1 | ₹2.50 lakh |
| Hydraulic press 17″ × 17″ | 1 | ₹7.00 lakh |
| Hydraulic press 14″ × 14″ | 2 | ₹6.20 lakh |
| Steam-heated press | 1 | ₹1.45 lakh |
| Boiler, weighing machine etc. | 1 | ₹1.20 lakh |
From: SIDBI Stand-Up Mitra project profile — Hot Water Bags or Ice Bags (2018) — private guide — confirm locally
- Smoked sheet (natural rubber)1,200 kg a month
- Precipitated calcium carbonate1,000 kg a month
- Zinc oxide125 kg a month
- Paraffin oil, paraffin wax, stearic acid35 kg, 12 kg and 12 kg a month
- Sulphur and accelerators (Vulcacit F, thiuram)15 kg sulphur, 15 kg and 2 kg accelerators a month
- Colour, HSL beads, Renacit 7, silicone release agentsmall monthly quantities
- Bags and paper cartonsfor packing
From: SIDBI Stand-Up Mitra project profile — Hot Water Bags or Ice Bags (2018) — private guide — confirm locally
In our raw material database
§5Licences & registration
- Udyam registration
- GST
- Factory licence
- Boiler registration if the boiler falls under the Boilers Act
- State Pollution Control Board consent
§6Schemes & subsidies
- PMEGPCentralActive15–35% subsidy
- CGTMSECentralActiveNo collateral, up to ₹10 crore
- Stand-Up IndiaCentralClosed₹10 lakh – ₹1 crore loan
PMEGP fits (₹32.58 L manufacturing project, under the ₹50 L limit); CGTMSE for a loan without collateral; Stand-Up India for SC/ST and women founders (loans ₹10 L–₹1 crore).
§7Money
How the investment is worked out: Plant & machinery ₹18.35 L + furniture & electricals ₹1.00 L + preliminary & pre-operative ₹4.59 L + working capital ₹8.64 L = ₹32.58 L. No land or building cost.
Working capital: Working capital ₹8.64 L (receivables ₹2.16 L, overheads ₹2.16 L, the rest stock); bank share ₹4.86 L.
Stand-Up Mitra profile from 2018 — machinery and material prices will be higher now.
§8Export potential
Confirm the HS code in the DGFT ITC(HS) lookup before you export
Export council / board: CAPEXIL
- Confirm the 8-digit ITC(HS) line with DGFT or your customs broker before shipping.
- You need an Import Export Code (IEC) from DGFT before the first shipment.
§9Risks — where people fail
- Natural rubber price swings
- Leaks, returns and injury claims
- Competition from established brands
- Weak cash flow in early years
§1030 / 60 / 90-day plan
A general plan that applies to any business. A plan for this business will be added after research.
- Days 1–30: Visit a working rubber hot water bags and ice bags unit, ask 10 buyers about price and quantity, and get quotations from 3 suppliers.
- Days 31–60: Udyam and the licences you need (Udyam registration, GST), a project report (DPR), and the scheme or loan file.
- Days 61–90: Space and machines, trial production, and first deliveries to 10 customers.
§11Who to connect with
Associations, clusters and training institutes — the directory is being built. Connect
§12Watch
There is no episode on this business yet. Shows are coming soon on the Podcast page.
Want to start Rubber Hot Water Bags and Ice Bags?
DPR, loan file or registration — ask us on WhatsApp.
¶Sources
Data review: 6 October 2026. Spotted a mistake? Report it. For information only — not legal or financial advice.