Dɛn kin yuz PTFE ay-tɛmpracha tep bɔku bɔku wan na marin ɛnvayrɔmɛnt – na ɔfsho pletfɔm, ship, kɔstal winda tɔbayn, ɛn sɔl-laden industrial zon. Di PTFE kotin insɛf de rili rɛsistɛns to sɔl sprɛy. כltu, di כvala pכrfomans fכ di tep dipכnt pan tu wik pכynt dεm: di adhesive layεr εn di ed dεm fכ di fayv glas sabstεrayt.
Sɔl sprɛy kin pas tru adhesive intafeys ɔ wik insay di fayv glas ed dɛn we de na do, we kin mek i lɔs di adheshon ɔ di sabstret kɔrɛshɔn. So, fɔ evalyu di sɔl sprɛy rɛsistɛns min fɔ tɛst if di adeziv de kip di bonding trɛnk, i nɔ de mek wata absɔpshɔn, ɛn i de protɛkt di mɛtal we de ɔnda am.
Aokai PTFE de mek PTFE tep we dɛn validet fɔ marin savis. Dis gayd de ɛksplen standad tɛst we dɛn de du, di krayteria fɔ aksept, ɛn di tin dɛn we dɛn nid fɔ yuz fɔ di say dɛn we gɛt bɔku sɔl-fɔg.
Salt Spray Test Methods fɔ PTFE Tep
Standardized testing de mek shɔ se tep mit marin-grɛd durabiliti. di mכst kכmכn mεt כd na nyutral sכlt spεray (NSS) pan ISO 9227 כ ASTM B117.
1. Fɔ pripia spɛshal wan
Laminate di PTFE tep pan wan standad mɛtal tɛst panɛl (ɛgz., SUS304 stenlɛs stiɛl ɔ di sabstret we yu want) yuz wan rɔla.
Sial di tep ed dɛn wit watapruf silin fɔ mek di sɔl fɔg nɔ go insay di ed dɛn we dɛn kɔt. Dis de simul di rayt instɔleshɔn usay dɛn protɛkt di ed dɛn.
Pripia inof spɛshal fɔ prɛ-tɛst, post-tɛst, ɛn kɔntrol grup dɛn.
2. Sɔl fɔg we yu de ɛksplɔz
Put spɛshal wan dɛn na sɔl sprɛy chɛmba na 35°C, 5% NaCl sɔlvushɔn.
Di tɛm fɔ tɛst: 96h, 240h, 500h, 1000h , ɔ as dɛn gri.
Tilt test panɛl dɛn na 15°–30° frɔm vertikal fɔ ivin sɔl fɔg dipɔzishɔn.
Akrilik PSA – I NƆ fayn: I izi fɔ mek i haydrolayz, plasticiz, ɛn lɔs adheshon ɔnda ay tɛmpracha ɛn ebi ebi sɔl fɔg. Yu nɔ fɔ ɛva yuz akrilik na say dɛn we de na di si.
2. Substrate ɛn edj protɛkshɔn
Di fayv glas klos fɔ ful-ɔp wit PTFE , we nɔ gɛt pinhol. dis de mek di sכl nכ go insay via kapilari akshכn along di fayv dεm, we go mek dεn delaminεshכn.
We yu de instɔl, sil tep de ɔvalap ɛn ed dɛn wit dediket silin we nɔ de ambɔg di wɛda (ɛgz., silikon-bɛs). dis de blכk di rod dεm we di sכl fכg de go insay – di mכst krichכl stεp fכ lכng tεm rilaybiliti.
3. Rikɔmɛnd sɔl sprɛy rɛsistɛns indis
Minimum 1000h nyutral sɔl sprɛy (NSS) we nɔ de lif ɔ blista bay insɛf.
180° peel strכng rεtεnshכn ≥80% afta 1000h.
Nɔ kɔrɛshɔn pan di ɔndalayn mɛtal (ɔ kɔrɛshɔn trays insay di limit dɛn we dɛn gri fɔ).
Fɔ kɔndishɔn dɛn we rili harsh (ɛgz., marin atmosfɛrik zon wit wet-dray saykl), dɛn kin rɛkɛmand fɔ du 2000h NSS ɔ saykli kɔrɛshɔn tɛst (CCT) .
4. Adaptabiliti to kɔmpɔzit ɛnvayrɔmɛnt
Ay tɛmpracha + sɔl fɔg: Fɔ rap di ɛgzoz paip ɔ fɔ insuleshɔn fɔ di ɔt-traysin, du kɔmbayn ɛj tɛst (ay ɔt + sɔl sprɛy).
UV exposure: Yuz na do na marin nid UV resistance – di adeziv nɔ fɔ chalk ɔ debond ɔnda ɔltra vayolɛt raytin.
Inspekshɔn ɔltɛm: Chɛk di ed dɛn we de na di tep we dɛn de du savis fɔ si if dɛn gɛt blista ɔ fɔ mek dɛn pul dɛn. Riples di tep we dɔn fel kwik kwik wan fɔ mek di strɔkchɔ we dɔn bon nɔ krɔs.
Sɔma – Ki Fakta fɔ Marin-Grɛd PTFE Tep
Tin
Di tin we dɛn nid fɔ du
Adhesive we dɛn kin yuz fɔ adhesive
Silikɔn PSA (nɔto akrilik) .
Sabstret we dɛn kɔl
Ful PTFE-impregnated fayv glas, nɔ pinhol
Edj we dɛn kin sidɔm
Weta-resistant sialant pan ɔl di ed dɛn we de na do ɛn di ɔvalap dɛn
Sɔl sprɛy tɛst
≥1000h NSS, di ritεnshכn fכ di pil ≥80%, nכ blista
Surface prep
Digris, derust, aplay prayma
Mek say we dɔn pwɛl
Inspekshɔn ɔltɛm; riples if edj de lif ɔ blista
Kɔmpɔzit ɛnvayrɔmɛnt dɛn
Test ay-temp + salt fog + UV if i apɔynt
Aokai PTFE de gi PTFE ay-tɛmpracha tep we dɛn validet fɔ marin ɛn ay-sɔl-fɔg ɛnvayrɔmɛnt. Wi silikon PSA fɔmyulashɔn dɔn pas 1000h NSS tɛst wit >85% pil trɛnk ritɛnshɔn. Wi de gi prayma ɛn ed sial rɛkɛmɔndeshɔn bak. Kɔntakt wi fɔ tɛst ripɔt ɛn aplikeshɔn gayd.
