Notes for owners · Business growth
Seasonal demand in plastics: planning enquiries around your buyer's calendar
How a plastics maker finds out when each buyer is busy and when they decide, counts back from that date, and starts the conversation before the buyer has already chosen a supplier.
The GullySales team · Updated 17 Oct 2026 · 5 min read
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The orders dried up in the rains, the crate enquiries came late, and the owner says the market has gone quiet. The buyers are often still buying, just earlier than the sales team calls. Many plastics makers have no season of their own, only their buyers' seasons, moved earlier. A cooler brand sells in summer but chooses its moulders months before. A crate buyer needs stock before the harvest, not during it. So ask each buyer two dates: when they sell most, and when they settle suppliers for it. Count back from the second date, allowing for your own tooling and sampling time, and start the conversation before it. Calling when the buyer is busiest gets you a polite "after the season".
Your busy months are someone else's deadline
A plastics factory sees demand arrive in waves and blames the market. Look closer and each wave belongs to a buyer type. The tank enquiries that dry up when the rains arrive belong to builders. The rush of lunch box orders belongs to brands working to a school reopening date.
None of this is news to the buyer. It is news to the sales team, who call in whatever order the list happens to be sorted. Each buyer can tell you that date if asked.
Three questions for every buyer
Ask these on the first call, or at the end of the current season while the buyer still remembers what went wrong.
"When do your own sales peak?"
"When do you finalise suppliers and quantities for that peak? Is it the same every year?"
"This season, what went wrong with supply that you would want fixed next time?"
The second answer is the one that matters. Write it against the buyer's name. The third answer is your opening line when you ring back: a buyer who ran short of crates in the last week of picking will take a call about it.
Count back from the decision, not the peak
Here is the rule, worked backwards from the buyer's peak.
- Find the start of the buyer's peak. Their first big dispatch, not the middle of the season.
- Take away their own lead time. Assembly, filling, packing and stocking at their end.
- Take away your lead time for a new buyer: tool trial or modification, sample, approval, first lot. A new mould adds the toolroom's time on top.
- Take away the time they take to decide. Ask them. Some decide in a meeting; some need head office.
- What is left is your last useful date. Make first contact a few weeks before it, with a sample in hand.
If the count lands in the past, you are too late for this season. Ask for a small trial lot as a test, and put next season's date in the calendar now.
One sheet per buyer type
Keep this sheet, one row per buyer type. Fill the first row from the buyer's own answers; the one below is invented, using the Mysuru example that follows.
| Buyer type | Their peak | When they decide | Your lead time | Last useful date | First contact |
|---|---|---|---|---|---|
| Mango traders, Kolar (sample row) | Picking from April | Once the trees flower, about mid-February | Sample 1 week; first lot 3 weeks | Late January | Early January |
| (your next buyer type) |
Seasons shift with region, crop and board, so trust the buyer's dates over any list, including this one.
Imagine: a crate moulder in Mysuru and the mango traders of Kolar
Imagine a moulder in the Hebbal industrial area of Mysuru making crates for dairies and vegetable aggregators. It wants mango traders in Kolar district as a second line of business. The details are illustrative.
In its first year, the sales team called traders around Srinivaspur once the fruit was already moving. Most had bought crates from their usual supplier weeks before. The few who needed more wanted them the next day. The moulder could not deliver, because the press was booked for a dairy order, and the season ended with two small orders.
The owner then asked the three questions of the traders who had bought. They said they settled crate orders once the trees flowered, well before picking. So the next year started in the slow months. A list of traders and commission agents was built, and a salesperson visited with a sample crate and a printed booking slip. Each slip carried a quantity, a delivery in two stages and a small advance. Presses were planned against the booked quantities, with the dairy work moved around them. The traders who missed the window were offered whatever was left, at the normal price. In this invented case about a third of the traders booked, fewer than the owner hoped, and one dairy order slipped by a week while the presses were rearranged.
When the calendar does not matter much
If most of your work is industrial parts called off on schedules, the buyer's season shows up as larger call-offs, not as a buying decision. A shared schedule handles that better, and our post on running schedules for moulded parts sets one out.
Be honest about capacity, too. This is where many moulders lose twice: they chase the seasonal order, then miss a regular's call-off. A seasonal buyer wants all of it in a few weeks. If your presses are full with steady customers at that time, winning the seasonal account means letting a regular one down. Price the peak for what it costs you, including overtime and the regular customer you may have to keep waiting, or leave it to a moulder who has the room.
Draw the year with decision dates
List your buyer types down the side and the months across. Mark each buyer's decision window, not their peak, and put your first contact a few weeks before it. Where a window falls in a month your presses are already full, write that beside it now rather than in the rush. Other ways plastics makers find buyers are on the plastic manufacturing page. If you want the calendar built around your own buyers, as part of annual revenue planning, tell us what you need.
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