Ma thep hop con (tuoc dung vao cac viec : bao ve day cap dong, chong lai tac dung cua luu huynh co trong vo caosu cach dien : lam de han cac tiep diem: tao ra tren be mat lam viec mot lop de ra khit.... Co the ma thiec cho cac vat bang thep, dong, nhom, hop kim nhom, hop kim kem. Lop ma thiec chi bao ve (luoc thep trong khong khi khi chung khong co lo xop.VANANHLop ma thiec rat deQ, chiu duoc cac bien dang co hoc nhu dot, dap, can, keo .... Lop ma thiec dien hoa co mot dac diem la la trong qua trinh bao quan , thiec se tai ket tinh thanh cac tinh the hinh chi co khi chieu dai den 5 ram. Cac tinh the.hinh chi nay co the dan den hien tuong ngan mach trong cac thiet bi dien tu . Toc do phat trien cac tinh the hinh chi ay phu thuoc vao ban chat cua nen . Thay rang tren lien kem, dong hay dong thau, toc do phat trien tinh the hinh chi cua lop ma thiec la lon nhat. Lam chay mem lop ma thiec hay ma lot mot lop mong ken truoc khi ma thiec se ngan chan duoc su phat trien cua I inh the hinh chi noi tren. VANANHNgoai phuong phap ma dien, lop thiec con duoc tao ra b phap nhung nong, phiiong phap hoa hoc (noi dien phan) ha dien phan trong nnioi nong chay.... Cac dung dich axit ma thiec thuong la dung dich sunfonat, floborat, halogenuaVANANHDung dich sunfatVANANHDung dich sunfat gom co cac chat thiec simfat, axit 1 chat hoat dong be mat. Doi khi con cho them Na2S04 de tang I dung dich . H-SO,, cho vao dung dich de giam bot su thuy pha thiec, cung nhu de khac phuc su oxy hoa thanh Sil4 V nham. Cac dung dich axit khong co mat chat huu co khong tl tua thiec vua y vi tinh the rat tho va phat trien manh thanh canh vat ma.VANANHKhi khong co phu gia, phan cuc catot trong dung dich i the thu duoc rat tho. roi rac: ngay khi dung mat do dong die tinh the van phat trien mot cach rieng re va co the vuon dai sar ngan mach giua cac cuc. Nhiing khi cho them nxit crezolsunfoni them ca keo da nua thi phan cuc catot tang len den 500 - 6 tuong sinh “cay" cung mat di. lop ma tro nen phang, nhan, min, Ma thiec tu dung dich axit co them chat hoat dong 1 nang phan bo tang len rat cao, co the ngiing voi dung dich dong suat dong dien 90-98V
