Plastic Limit Set
Product Code : LSK-SM-10665
Plastic Limit Set (SKU LSK-SM-10665) is a kit of hand tools for the classic plastic limit test, in which moist soil is rolled on a glass plate into a 3 mm thread until it begins to crumble. It covers mixing, rolling, comparison and moisture sampling for soil mechanics classes in engineering colleges, polytechnics and TVET centres. Science Lab Supplies dispatches the kit from Ambala, India against quotations requested by institutes, tender contractors and distributors.
Specifications
One row per component sets out the plastic limit kit below. In short, a frosted 20 x 15 cm glass plate and a 3 mm x 150 mm reference rod handle the rolling, while a 150 mm porcelain basin, a flexible spatula, six moisture containers and a 500 ml wash bottle cover mixing and sampling.
| Specification | Value |
|---|---|
| SKU | LSK-SM-10665 |
| Thread diameter criterion | 3 mm |
| Reference rod material | Brass or stainless steel |
| Reference rod size | 3 mm dia x 150 mm long |
| Spatula | Flexible |
| Moisture containers | Set of 6 |
| Glass plate size | 20 cm x 15 cm |
| Glass plate edges | Ground ends |
| Glass plate surface | One side frosted |
| Mixing basin | Porcelain, 150 mm dia |
| Wash bottle | Plastic, 500 ml |
| Supplied by | Science Lab Supplies, Ambala, India |
Applications and Experiments for the Plastic Limit Set
The plastic limit is the water content at which a soil just begins to crumble when rolled into a 3 mm thread. This set provides what is needed to reach that point and sample the thread, so the result can be paired with the liquid limit to give the plasticity index.
- B.Tech / B.E. civil engineering: Atterberg limits and plasticity index for soil classification, with the liquid limit found on the Hand Operated Casagrande Equipment.
- Diploma civil engineering: identifying clays and silts by their plastic behaviour, cooling dried moisture containers in a Glass Desiccator before weighing.
- TVET building and road construction modules: assessing clay soils for fill and embankments.
Standard Scope of Supply
The set comprises one 3 mm x 150 mm rod in brass or stainless steel, one flexible spatula, six moisture containers, one 20 x 15 cm glass plate with ground ends and one frosted side, one 150 mm porcelain basin and one 500 ml plastic wash bottle. A balance and a drying oven are separate items.
Packing, MOQ and Lead Time
A quotation can cover a single kit or one for every bench in a class, and it states the packing, delivery time and price for that number. Liquid limit devices and an oven may be added, which suits institutes buying vocational training equipment in one lot.
Registered as an exporter with an Importer-Exporter Code, Science Lab Supplies can ship to buyers in Vietnam, Malaysia, Peru, Egypt, Iraq and Nigeria. Kit quantities can be sent on the contact page or gathered in the enquiry cart, while public-sector buyers can follow the lab tender page.
Frequently Asked Questions
What is the 3 mm rod for?
It is a reference for thread thickness. When the rolled soil thread reaches the rod's 3 mm diameter and just begins to crumble, the soil is at its plastic limit.
Why is the glass plate frosted on one side?
The frosted face gives a slightly rough rolling surface, so the thread rolls rather than slides. The ground ends remove sharp edges from the 20 x 15 cm plate.
Who supplies the Plastic Limit Set?
The kit is supplied by Science Lab Supplies, based in Ambala, India. Engineering colleges, polytechnics, training centres, contractors and distributors can each request a quotation listing all six components and the quantity required.
How does it compare with the Plastic Limit Roller?
This set follows the hand-rolling method with a glass plate and reference rod, while the roller forms the thread between two plates with 3.2 mm rails. Both can be quoted together for comparison.
Related Soil Consistency and Moisture Test Equipment
To complete the consistency tests that start with this kit, the items below add a mechanical roller, liquid limit devices and shrinkage apparatus, plus an oven and labware for moisture work. They come from the Soil Mechanics, Concrete Laboratory and Chemistry Lab ranges and fit on one quotation.
- Plastic Limit Roller — adhesive-backed absorbent paper that adds no fibre to the soil, with a 50-sheet pad.
- Cone Penetrometer — 148 g total sliding weight with a 25 mm penetration criterion.
- Motorised Casagrande Equipment — mechanical counter that records the number of cup drops.
- Shrinkage Limit Set — shrinkage dish, glass cup and porcelain evaporating dish, supplied without mercury.
- Drying Oven — 50–300 °C range with three shelves and four shelf positions.
- Porcelain Dish — 150 ml porcelain dish with a pouring spout on the rim.
- Wash Bottle Lab — 500 mL squeeze bottle in low-density polyethylene.
Browse the full Soil Mechanics range, the Chemistry Lab range for dishes and wash bottles, or all TVET lab equipment.
Last updated: 9 October 2026
