2K HB Primer Surfacer. 2K HB Primer Surfacer. 2K HB Primer Surfacer is a two-component fast curing high-build urethane primer surfacer. 2K Primer Surfacer provides exceptional build and good holdout in combination with all U-TECH topcoats.
CVS is usually performed between 10 and 13 weeks from your last menstrual period. CVS may be chosen over amniocentesis because it may be performed earlier in the pregnancy. Chorionic villus sampling detects chromosome abnormalities (i.e. Down syndrome) and genetic disorders (i.e. cystic fibrosis.).
The main advantage of CVS over amniocentesis is that you can have it done earlier â generally between 10 and 13 weeks of pregnancy. For an amnio, you'll have to wait until you're at least 16 weeks pregnant.he main advantage of CVS over amniocentesis is that you can have it done earlier â generally between 10 and 13 weeks of pregnancy. For an amnio, you'll have to wait until you're at least 16 weeks pregnant.