How to specify gloves for ceramic plants: separate kiln-side heat from wet glazing work, set EN 388 and EN 407 targets, choose real yarns and coatings, and plan MOQ, sampling, AQL inspection, packing and FOB shipment without catalogue guesswork.
Separate the kiln door from the glazing conveyor
A ceramic factory usually needs at least 2 glove specifications. Kiln unloading is a heat and radiant-risk job. Glazing, fettling and sorting are wet-grip, abrasion and cut-risk jobs. One thick glove cannot do both well. If a buyer asks GloveMark for one ceramic kiln gloves programme for every station, we normally split it into a sewn heat glove for kiln-side work and a coated seamless knit glove for wet ceramic handling. Operators will reject a bulky EN 407 glove on a fast glazing conveyor because they cannot feel cups, tiles or sanitaryware edges after the first shift. For kiln-side work, the realistic constructions are split cowhide with cotton fleece or jersey lining, split cowhide with aramid felt, or sewn para-aramid and meta-aramid fabric gloves for cleaner ware. For glazing and sorting, we normally start with 13 gauge or 15 gauge seamless liners in HPPE, nylon, polyester, glass fibre blend or steel fibre composite yarn, then choose sandy nitrile, nitrile foam, latex crinkle or PU palm coating. EN ISO 21420 covers general glove requirements. EN 388:2016+A1:2018 covers abrasion, blade cut, tear, puncture and ISO 13997 cut letters A to F. EN 407:2020 covers heat and flame risks. Ask for the proposed marking, for example EN 388 4X43C and EN 407 X2XXXX, not a catalogue phrase like high temperature resistant.
Kiln heat: specify contact time and handling load
The weak enquiry we see most often is 300 C glove. That number is not enough for sourcing. EN 407 contact heat is based on the time taken for the inside of the glove to rise by 10 C. The common contact-heat levels are 100 C, 250 C, 350 C and 500 C for at least 15 seconds under the test method. A glove that passes 250 C contact heat in a lab may still be wrong for carrying a heavy kiln shelf for 30 seconds because pressure compresses the insulation and trapped heat continues after the first touch. We ask the plant to describe the job in plain numbers: removing mugs or plates from a cooling rack at 80-120 C, moving kiln furniture at 180-250 C, pulling a kiln car, or opening a door where radiant heat hits the back of the hand. For quick contact with rough kiln furniture, split cowhide with a cotton fleece lining and 14 inch or 16 inch length can be cost-effective. For cleaner tableware or white ceramic, an aramid fabric outer with cotton or aramid lining reduces leather dust and loose fibre, but it is not a low-price glove. A sewn heat glove MOQ is usually 500-1,000 pairs per size or colourway. Development samples normally take 10-14 days after fabric, lining, cuff length and label artwork are confirmed. Special aramid fabric, aluminised back panels or uncommon sizes can add 1-2 weeks.
Sharp bisque and tile edges need TDM cut data
Unglazed bisque ware, fired tile edges and broken ceramic shards are not the same risk as smooth finished plates. For sorting lines and tile packing, we usually test HPPE-glass, HPPE-steel or engineered yarn blends in 13 gauge first. If the buyer only says cut resistant, the factory has too much room to quote the cheapest liner. EN 388 blade cut can be affected by blade dulling, so the ISO 13997 TDM letter, A to F, is usually the more useful target. Many ceramic tile plants land around level C or D, while heavy breakage areas may need D or E. The correct level depends on edge profile, breakage rate and whether operators grip single pieces or stacks. A common starting point is a 13 gauge HPPE-glass liner with sandy nitrile palm. It gives better wet grip than flat nitrile, more abrasion life than thin PU in slurry, and enough hand feel for tile sorting. A 15 gauge liner is more comfortable for inspection and packing, but it has less cushion when workers handle rough biscuit tiles for 8 hours. For the US market, write the ANSI/ISEA 105 target into the tech pack, such as A3, A4 or A5, instead of mixing EN 388 letters and ANSI numbers with no pass level. We do not recommend selling an untested liner as cut level D just because the yarn looks similar to a tested glove. The marking belongs to the exact glove construction, coating and size range tested.
Glaze, water and slip decide the palm coating
Glaze slurry is wet and abrasive. Fine ceramic particles in the mix behave like grinding paste at the fingertips and thumb crotch. PU coating gives good fingertip feel on dry inspection tables, but it can polish smooth and lose grip on wet glazed ware. Latex crinkle grips wet ceramic well and is usually cheaper, but it contains natural rubber latex and may not fit buyers with latex-avoidance policies. Sandy nitrile is often the safer export choice for wet grip, oil tolerance and latex-free positioning, although it costs more than basic latex crinkle on the same 13 gauge liner. For a glazing conveyor trial, we normally propose 3 samples: 13 gauge HPPE or nylon liner with sandy nitrile palm, 13 gauge nylon with latex crinkle palm, and 15 gauge nylon with nitrile foam palm for lighter inspection. The plant should test them with actual glazed cups, tiles or sanitaryware, not with dry cartons in an office. Useful checks are grip after 30 minutes of wet use, coating swelling, fingertip wear, thumb-crotch cracking and whether operators can pick one piece without dragging the next. During mass production we check dipping depth, coating coverage at fingertips, exposed liner, pinholes and curing consistency. Coating thickness and oven temperature change stiffness, so an approved pre-production sample should be kept against bulk production.
Clean handling for whiteware and sanitaryware
White tableware, glossy tile and sanitaryware show dirt and colour transfer immediately. A black sandy nitrile glove may perform well but can leave marks if the compound is too soft, under-cured or contaminated with factory dust. For whiteware inspection, buyers often choose grey, white or light blue coatings. We can make light-colour dipped gloves, but Pantone matching on nitrile or latex is not as exact as printing on paper. The realistic process is a lab dip, one approved swatch, and an agreed tolerance under the same light source. Light colours also show carton dust and workshop dirt faster, so packing discipline matters. If the line handles tableware that may later contact food, do not confuse general ceramic inspection gloves with food-contact gloves. Some buyers request LFGB or FDA migration tests, but those tests must be quoted for the exact glove material, coating colour and production batch. They are not automatic because a glove is clean or light coloured. For general ceramic handling, we focus on lint, odour, colour transfer and loose threads. Standard bulk packing is often 12 pairs per polybag and 120 or 240 pairs per export carton, depending on glove bulk. Retail header cards, barcoded inner bags or individual polybags add labour, carton volume and sometimes 3-7 days to packing time after bulk gloves are finished.
Sampling, MOQ, AQL and export details
A useful first sample set for a ceramic plant is 3-5 styles in 2 sizes, usually M and L for inspection lines or L and XL for kiln and tile handling. Lab dips for coating colour usually take 5-7 days. Functional samples for knit-dipped gloves normally take 10-14 days if yarn and coating are standard. Sewn leather or aramid heat gloves take about 2-3 weeks when special fabric, long cuffs, Kevlar thread, leather thickness or back-of-hand reinforcement must be confirmed. Bulk lead time is commonly 4-6 weeks after sample, size ratio, artwork and packing approval. Peak season, imported yarn or custom cartons can push this longer, so do not fix a plant launch date before the pre-production sample is signed. Typical OEM MOQ for dipped work gloves is around 3,000-6,000 pairs per colour and coating combination because liner knitting, dipping tanks, curing ovens and packing set-up need volume. Sewn leather or aramid heat gloves can sometimes start at 500-1,000 pairs, but unit price is higher and size grading is more manual. For low-volume trials, it is better to use stock colour yarn and standard cuff colours than force a custom Pantone. Inspection should use AQL, commonly 2.5 for major defects and 4.0 for minor defects, with ceramic-specific checkpoints added. We check open seams on long cuffs, weak binding tape, coating pinholes, exposed liner at fingertips, left-right pairing, size stamp clarity, coating delamination after flexing, odour, carton label accuracy and country-of-origin marking. For private label orders, artwork should state SKU, size, fibre content where required, EN or ANSI claims only if supported, and importer details if the destination market needs them. GloveMark can develop knit-dipped and sewn glove programmes for ceramic plants, including private label bags, cartons and mixed-size packing. We do not manufacture moulded long-arm rubber gauntlets in-house for chemical dipping tanks, and we will say so early if the line needs heavy acid or alkali protection under EN ISO 374. For FOB Ningbo or FOB Shanghai, a work glove carton is often 45-60 cm on the longest side and 10-18 kg depending on coating, lining and cuff length. Container loading should be calculated from the approved carton and final pack count, not from a catalogue estimate. Incoterms, HS code checking, carton marks and pallet requirements should be confirmed before deposit, not after production is ready.
Quote Comparison Welcome
If you already have a quote from another supplier, send it over with the spec sheet - we will quote against it line by line and tell you where we are cheaper, where we are not, and why. Most useful for buyers on order #2 or #3.
Disclaimer: nothing here is legal or customs advice. For HS-code classification and duty rates, please verify with your customs broker.