Ratings: 10 = no tack; 9 = trace tack; 8 = very slight tack; 7 = very slight to slight tack; 6 = slight tack; 5 = moderate tack; 4 = very tacky (no seal); 3 = 5-25% seal; 2 = 25-50% seal; 1 = 50-75% seal; 0 = 75-100% seal.