Additive combination for sealants applications

A composition comprising:

• (A) at least two sterically hindered amines selected from the group consisting of a compound of formula (A-i), a compound of formula (A-ii), a compound of formula (A-iii), a compound of formula (A-iv), and a compound of formula (A-v);
• (B) at least one of a compound of formula (B-i) or formula (B-ii);
• (C) at least one dispersant of formula (C-i);
• and
• (D) at least one plasticizer (D);
• and, optionally,
• (E) at least one non-resin additive (E), and/or, optionally,
• (F) at least one resin (F);
• wherein sterically hindered compounds of formulas (A-i), (A-ii), (A-iii), (A-iv) and A-v) are described by the following chemical structures:
• where a ranges from 2 to 50;
• R—NH—(CH2)3—N(R)—(CH2)2—N(R)—(CH2)3—NH—R, wherein R is
• wherein the compounds of formulas (B-i) and (B-ii) are described by the following chemical structures:
• wherein the dispersant of formula (C-i) is described by the following chemical structure:
• where R1 is —(CH2—CH2—O)r—R5, wherein r ranges from 2 to 100, and R5 is branched C1-C18alkyl or linear C1-C18alkyl;
• R2 is linear C8-C20alkyl or branched C3-C20alkyl,
• R3 is C6-C12aryl, di-C1-C4dialkyl-aminoC2-C6alkylene, or C2-C12aminoaryl having 1 to 3 ring-nitrogen atoms, wherein an aryl group and an aminoaryl group are unsubstituted or substituted by C1-C4alkyl,
• R4 is H or CH3,
• n and q are independently integers from 3 to 100, and
• m and p are independently integers from 0 to 100.