Rangi ya Thermoplastiki ya Alama za Barabarani ya AASHTO M249
Nyenzo imara ya thermoplastiki ya alama za barabarani inayorudisha mwanga na kukidhi kiwango cha Marekani AASHTO M 249-12 (2024) — kipimo kinachotajwa kwenye zabuni katika masoko yenye ushawishi wa Marekani.
- JINA LA BIDHAARangi ya thermoplastiki ya alama za barabarani
- UFUNGASHAJI25 kg / gunia
- MUUNDO MKUU30% ya shanga za kioo · 10% TiO₂ (nyeupe) · kiunganishi cha resini ya petroli ya C5 ≥ 18%
- PIA HUITWARangi ya kuyeyushwa kwa joto ya alama za barabarani · rangi ya mistari ya barabara inayowekwa kwa joto · mchanganyiko wa thermoplastiki wa alama za lami
- MAHALI ILIPOTOKAGuangxi, China
- MATUMIZIKuyeyushwa kwa joto (inayeyushwa na kuwekwa eneo la kazi)
- HALIPoda
- MUDA WA KUKAUKADakika 2–5 kwa wastani
Mahitaji ya AASHTO M249
M 249 hubainisha nyenzo inayowekewa uwezo wa kurudisha mwanga kiwandani: tofauti na BS 3262, kiwango hiki kinamtaka mtengenezaji kuchanganya mapema 30–40% ya shanga za kioo za AASHTO M 247 Type 1 kwenye nyenzo kiwandani, huku shanga zaidi zikinyunyiziwa wakati wa matumizi. Majedwali yaliyo hapa chini yanaonyesha mahitaji mahususi ya kiwango; vipimo vya nyenzo zetu dhidi ya mahitaji yako huja kwenye karatasi ya data ya kila agizo.
Composition — by mass of finished material
| Component | White | Yellow |
|---|---|---|
| Binder | ≥ 18.0% | ≥ 18.0% |
| Premix glass beads (uncoated, AASHTO M 247 Type I) | 30 – 40% | 30 – 40% |
| Titanium dioxide (TiO₂) | ≥ 10.0% | not specified |
| CaCO₃ + inert fillers | ≤ 42.0% | manufacturer’s formulation |
The 30–40% covers the beads inside the material only; drop-on beads applied to the hot line are on top of it.
Finished-material requirements
| Property | White | Yellow |
|---|---|---|
| Specific gravity | ≤ 2.15 | ≤ 2.15 |
| Daytime luminance factor Y, after heat conditioning | ≥ 75% | ≥ 45% |
| Yellowness index | ≤ 0.12 | — |
| Softening point (ring-and-ball) | 102.5 ± 9.5°C | 102.5 ± 9.5°C |
| Low-temperature stress resistance at −9.4 ± 1.7°C | no cracks | no cracks |
| Impact resistance | ≥ 1.13 J | ≥ 1.13 J |
| Flow resistance (residue) | ≤ 18% | ≤ 21% |
| Flow resistance after extended heating (8 h) | ≤ 28% | ≤ 28% |
| Storage life | 1 year — uniform melting, no caking or unmelted particles | |
Colour is judged after conditioning the material for 240 ± 5 min at 218 ± 2°C — a report that skips the heat treatment does not prove M 249 compliance. For pre-qualification the standard also sets 180-day test-deck retained retroreflectivity: white ≥ 325, yellow ≥ 200 mcd·m⁻²·lx⁻¹, measured on a double-drop bead system.
Application — the standard’s reference conditions
| Parameter | Requirement |
|---|---|
| Method | Spray, screed extrusion or ribbon extrusion — buyer’s option |
| Material temperature | 211 ± 7°C |
| Applied thickness | 3.2 – 4.8 mm |
| Open to traffic, at 10 ± 2°C ambient | ≤ 2 min |
| Open to traffic, at 32 ± 2°C ambient | ≤ 10 min |
| Surface drop-on beads | rate set by the project — the standard fixes no universal g/m² |
In the tender, but not in M 249
Many “M 249” clauses circulating in the market are project add-ons — legitimate, but they belong in the contract, because the standard’s current text does not set them:
| Common claim | What M 249-12 (2024) actually says |
|---|---|
| Binder 18 – 22% | Sets a minimum of 18.0% only — no 22% cap |
| Bond strength ≥ 1.24 MPa | T 250 has the test method; M 249 sets no acceptance value |
| Flash point ≥ 246°C | No unified threshold in the current text |
| Drop-on beads at 250 – 500 g/m² | Application rate is a project clause, not a standard value |
| Initial RL of 300 / 400 / 500 | Standard gives only 180-day retained values (325 / 200) |
| Skid resistance BPN ≥ 45 | No unified skid limit |
| Application at 180 – 200°C | The standard’s reference condition is 211 ± 7°C |
If your tender sets any of these, state them explicitly — we formulate against the clause and answer with a datasheet that covers every line.
Kile ambacho AASHTO M249 inahitaji hasa — na kile ambacho haihitaji
KIUNGANISHI 18–22%? KIWANGO MAALUM CHA KUNYUNYIZIA? RL YA AWALI 300? HAKUNA HATA KIMOJA KWENYE MAANDISHI. WAHANDISI WETU WANACHAMBUA M 249-12 (2024), JEDWALI KWA JEDWALI.
Kutoka Mstari Wetu hadi Bandari Yako
- Magunia ya PP yaliyofumwa yenye uzito halisi wa 25 kg — yamechapishwa kwa chapa ya PZTRAFFIC au chapa yako mwenyewe: uchapishaji wa magunia ya OEM unakaribishwa.
- Ufungaji wa kiotomatiki na upangaji kwenye paleti kwa roboti kwenye mistari ya thermoplastiki katika kituo chetu cha Hezhou.
- Kila bechi hupitishwa na maabara yetu ya ndani kabla ya kupangwa kwa ajili ya kupakiwa.
- Husafirishwa kutoka Bandari ya Qinzhou — Asia ya Kusini-Mashariki kwa siku 5–15, Afrika na Amerika kwa wastani wa siku ~30. Masharti ya biashara ya EXW / FOB / CIF.
- Nyaraka za FORM E / ACFTA zinapatikana kwa wanunuzi wa ASEAN.
Inaoana na
Maswali ya Ununuzi
Q-01Can you provide samples?
Yes — free samples of 1–2 kg for any product. Whatever you pay for the sample and its freight is credited in full against your next purchase. Email info@pztraffic.com with the products and standards you need.
Q-02What is the difference between AASHTO M249 and BS 3262 material?
M 249 is a factory-reflectorized, solid-form specification: 30–40% premix beads are mandatory, white TiO₂ is fixed at ≥ 10%, and the softening point sits in a 93–112°C band. BS 3262 is the British formulation framework — premix beads (≥ 20%) only when the line must reflectorize, softening point ≥ 65°C. We manufacture to both; the right choice is simply whichever standard your tender names.
Q-03Do you supply the drop-on glass beads as well?
Yes. M 249 leaves the drop-on rate and bead grade to the project, so specify them in your order — AASHTO M 247 Type 1, 2 and 3 beads are in our catalog and ship alongside the paint in the same container.
Q-04Which trade terms do you support?
We can provide EXW, FOB, CIF services, etc.
Pata Nukuu ya Bei ndani ya Saa 24
Tafadhali jaza fomu iliyo hapa chini nasi tutawasiliana nawe.
