One key question we get asked a lot is 'Why is controlled surface temperature important?'. This is a brief look into how important this is before you use any products and what happens when you apply the products at different air and surface temperatures.
The key factor behind ensuring you check and monitor the surface temperature is because it can differ significantly, and surprisingly, from the air temperature.
For example, on a bright sunny day with a 25-degree ambient air temperature, an asphalt surface that is exposed to the sunlight can see substrate temperatures rise to 40, 50 or even 60 degrees some days. When you are applying a line marking system or a surface coating, regardless of the temperature of the material before it is applied, when it comes in contact with the surface, the material itself will reflect the substrate temperature very quickly.
This difference is also noticeable in the opposite direction after sudden drops of air temperature, as the surface temperature can often remain at a couple of degrees above the air temperature.
Another consideration is the film thickness of the line marking or surface coating. The curing process for solutions with thin film thickness, such as paints, can be significantly affected on substrates with cold surface temperature. This can affect some systems to such an extent that the curing process will slow down until it stops curing altogether.
One specific product example is a two-pack epoxy system, which cures at around 8 degrees Celsius. If the temperature drops below this level, the curing process will completely stop. When the temperatures rise again, which could be in 12 hours or later, the curing process will be revived, and the product will start curing again. The challenge with this is extended cure times, which leaves areas out of action and projects taking longer than originally planned.
In conclusion, when it comes to the substrate temperature, this has a significant impact on the curing process of the materials which is being applied.
In the summertime, if the substrate temperature is too high, this can cause the system to fail as products can go powdery due to drying or curing too fast with too much heat. If the substrate temperature is too low, the curing process is significantly extended and stops entirely in some cases.
If you want to know more about how we can help you with surface temperature and which product is best for your project, get in contact at email@example.com or call us on 02392 200 606.
Swali moja muhimu tunaloulizwa mara nyingi ni 'Kwa nini kudhibiti joto la uso ni muhimu?'. Hii ni kuangalia fupi katika jinsi muhimu hii ni kabla ya kutumia bidhaa yoyote na nini kinatokea wakati wewe kutumia bidhaa katika hewa tofauti na joto uso. Jambo muhimu zaidi ni kuhakikisha kwamba unakagua na kudhibiti joto la uso kwa sababu inaweza kutofautiana sana, na kwa kushangaza, kutoka kwa joto la hewa. Kwa mfano, siku ya jua na joto la hewa ya 25 ° C, uso wa lami unaofunuliwa na jua unaweza kuona joto la substrate kuongezeka hadi 40, 50 au hata 60 ° C siku zingine. Wakati wa kutumia mfumo wa alama ya mstari au mipako ya uso, bila kujali joto la nyenzo kabla ya kutumika, wakati inakuja kuwasiliana na uso, nyenzo yenyewe itaonyesha joto la substrate haraka sana. Tofauti hii pia inaonekana katika mwelekeo kinyume baada ya kushuka ghafla kwa joto la hewa, kwani joto la uso mara nyingi linaweza kubaki digrii chache juu ya joto la hewa. Jambo jingine la kuzingatia ni unene wa filamu ya alama ya mstari au mipako ya uso. Utaratibu wa kuponya kwa ufumbuzi na unene wa filamu nyembamba, kama vile rangi, unaweza kuathiriwa sana kwenye substrate na joto la uso baridi. Hii inaweza kuathiri baadhi ya mifumo kwa kiasi kwamba mchakato wa kuponya itapungua hadi itasimama kuponya kabisa. Mfano wa bidhaa maalum ni mfumo wa epoxy wa pakiti mbili, ambao huponya karibu digrii 8 Celsius. Joto likishuka chini ya kiwango hicho, mchakato wa kukausha utasimama kabisa. Wakati joto la joto linapopanda tena, ambayo inaweza kuwa katika masaa 12 au baadaye, mchakato wa kuimarisha utaanza tena, na bidhaa itaanza kuimarisha tena. Tatizo la hii ni muda mrefu wa matibabu, ambayo inaacha maeneo nje ya hatua na miradi kuchukua muda mrefu kuliko awali iliyopangwa. Kwa hivyo, kwa sababu ya hali ya joto ya substrate, ni muhimu kuamua jinsi ya kuimarisha nyenzo. Wakati wa majira ya joto, ikiwa joto la substrate ni kubwa sana, hii inaweza kusababisha mfumo kushindwa, kwani bidhaa zinaweza kuwa unga kwa sababu ya kukausha au kuponya haraka sana na joto nyingi. Kama substrate joto ni chini sana, mchakato wa kuponya ni kwa kiasi kikubwa kupanuliwa na kuacha kabisa katika baadhi ya kesi. Ikiwa unataka kujua zaidi juu ya jinsi tunaweza kukusaidia na joto la uso na ni bidhaa gani inayofaa kwa mradi wako, wasiliana nasi kwa barua pepe @example.com au tupigie simu kwenye 0232200606.